front

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An elongated, sloping zone in the troposphere, within which changes of temperature and wind velocity are large compared to changes outside the zone. Thus the passage of a front at a fixed location is marked by rather sudden changes in temperature and wind and also by rapid variations in other weather elements such as moisture and sky condition.

In its idealized sense, a front can be regarded as a sloping surface of discontinuity separating air masses of different density or temperature. In practice, the temperature change from warm to cold air occurs mainly within a zone of finite width, called a transition or frontal zone. The three-dimensional structure of the frontal zone is shown in the illustration. In typical cases, the zone is about 1 km (0.6 mi) in depth and 100–200 km (60–120 mi) in width, with a slope of approximately 1/100. The cold air lies beneath the warm in the form of a shallow wedge. Temperature contrasts generally are strongest at or near the earth's surface, the frontal zone usually being narrowest near the ground and becoming wider and more diffuse with height.

Schematic diagram of the frontal zone, angle with Earth's surface much exaggerated

The surface separating the frontal zone from the adjacent warm air mass is referred to as the frontal surface, and it is the line of intersection of this surface with a second surface, usually horizontal or vertical, that strictly speaking constitutes the front. According to this more precise definition, the front represents a discontinuity in temperature gradient rather than in temperature itself. The boundary on the cold air side is often ill-defined, especially near the earth's surface, and for this reason is not represented in routine analysis of weather maps. See also Weather map.

The wind gradient, or shear, like the temperature gradient, is larger within the frontal zone than on either size of it. In well-developed fronts the shift in wind direction often is concentrated along the frontal surface, while a more gradual change in wind speed may occur throughout the frontal zone. An upper-level jet stream normally is situated above the frontal zone. See also Jet stream.

noun

1. The part of someone or something facing the viewer: fore, forepart. See precede/follow.
2. The forward outer surface of a building: façade, face, frontage, frontal. Architecture frontispiece. See precede/follow.
3. A deceptive outward appearance: cloak, color, coloring, cover, disguise, disguisement, façade, face, false colors, gloss, guise, mask, masquerade, pretense, pretext, semblance, show, veil, veneer, window-dressing. Slang put-on. See show/hide.

verb

1. To have the face or front turned in a specific direction: face, look (on or upon). See precede/follow.
2. To meet face-to-face, especially defiantly: accost, confront, encounter, face. See meet.
3. To confront boldly and courageously: beard, brave, challenge, dare, defy, face. Idioms: fly in the face of, snap one's fingers at, stand up to, thumb one's nose at. See resist/yield.

Idioms beginning with front:
front and center
front burner, on a
front office

See also brave face (front); in front of; out front; up front.

Definition: lead, beginning
Antonyms: back, ending, final, finishing, rear

n

Definition: forward, beginning part of something
Antonyms: back, end, rear

n. 1. the foremost line or part of an armed force; the furthest position that an army has reached and where the enemy is or may be engaged: his regiment was immediately sent to the front.

2. the direction toward which a line of troops faces when formed.

3. a particular formation of troops for battle.

4. a particular situation or sphere of operation: there was some good news on the western front.

5. often in names an organized political group: the Palestinian Liberation Front.

6. a person or organization serving as a cover for subversive or illegal activities: the CIA identified the company as a front for a terrorist group.

7. a well-known or prestigious person who acts as a representative, rather than an active member, of an organization.

exclam. used to summon someone to the front or to command them to assume a forward-facing position, as in giving orders to troops on parade: soldiers, front and center!

frontward adj. & adv. frontwards adv.

See the Introduction, Abbreviations and Pronunciation for further details.

The border zone between two air masses which contrast, usually in temperature. A warm front marks the leading edge of a sector of warm air; a cold front denotes the influx of cold air. Fronts are intensely baroclinic zones, about 2000 km long and 2000 km wide, moving at around 14 km per day. In mid-latitude depressions, fronts develop as part of a horizontal wave of warm air enclosed on two sides by cold air. These frontal wave forms move from west to east in groups known as frontal wave families.

The basic classification into warm fronts, with a slope of 1 in 100, and steeper cold fronts is further divided by the type of air movement at the front. In ana-fronts, the warm sector air is rising, and a succession of cloud types and precipitation results. In kata-fronts, the warm sector air is descending, clouds are few and precipitation is reduced to a drizzle.

Traditionally, much weather forecasting has been based on the correct interpretation of fronts, but recent research would indicate that divergence in the upper air is probably more important than the convergence of air masses in the lower atmosphere.

Fronts

1. The most prominent face of a building and/or that face which contains the main entrance.
2. The face of a lock through which the bolt or bolts move. It is usually mortised in so as to be flush with edge of door; also called a lock front.

(DOD, NATO) 1. The lateral space occupied by an element measured from the extremity of one flank to the extremity of the other flank. 2. The direction of the enemy. 3. The line of contact of two opposing forces. 4. When a combat situation does not exist or is not assumed, the direction toward which the command is faced.

LearnThatWord.com is a free vocabulary and spelling program where you only pay for results!

In meteorology, the line that forms the boundary between two air masses. Unless they are very similar in temperature and humidity, they will not mix.

• Relative Positions - fronting: (adj) lying before; facing

Look up front in Wiktionary, the free dictionary.

Look up frontal in Wiktionary, the free dictionary.

Front may refer to:

common noun

• Front (military), area where armies are engaged in conflict
  • Front (Russian Empire), Front (Soviet Army), types of military formations
• Front (sociology), term used by Goffman
• Front organization
• Ice front of a glacier
• Front of a coin (see Obverse and reverse)
• Grill (jewelry), also known as "front", jewelry for teeth
• Weather front
• Front (Oceanography), a place where two water masses come together in the ocean

proper noun

• The Front, 1976 film
• The Front, now part of the Delaware Park-Front Park System, in Buffalo, New York, United States
• The Front (Canadian band), a Canadian studio band from the 1980s
• "The Front" (The Simpsons episode)
• Front (magazine), British men's magazine
• Front, Piedmont, Italian municipality
• Front, California, former name of Brown, California
• Front Illustrated Paper, Yugoslav Peoples Army publication

See also

• All pages beginning with "Front"
• All pages with titles containing "Front"
• All pages beginning with "frontal"
• All pages with titles containing "frontal"
• Front end (disambiguation)
• Front vowel
• In politics: Popular front, united front, national front
• Altar frontal, hanging in front of a Christian altar
• Coronal plane, or "frontal plane"
• Frontal bone
• Frontal lobe of the human brain
• Frontal scale in a reptile

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.

This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)

Dansk (Danish)
n. - forside, front, holdning, indsats
adj. - forrest, for-, til gaden
v. tr. - konfrontere, ligge foran, dække
v. intr. - vende forsiden imod

idioms:

• front axle    foraksel
• front bench    sidde på en af de forreste bænke i parlamentet
• front burner    særlig opmærksomhed
• front door    hoveddør
• front line    frontlinie, forreste linie
• front man    stråmand, topfigur
• front page    forside
• front runner    spidskandidat
• in front    forrest
• in front of    foran
• in front of one's eyes    for ens øjne
• on the front burner    som ydes særlig opmærksomhed
• up front    oppe foran

Nederlands (Dutch)
front, voorkant, (strand)boulevard, dekmantel, stroman, lef, toer, voorhoofd, gezicht, uiterlijke verschijning, politiek, voorhoede, voorkant van blouse, vooraan, voorst, voor-, camouflage-, uitkijken op, het gezicht zijn van, confronteren, verschijnen, articuleren met de tong voorin, als dekmantel dienen, eerste 9 holes (golf)

Français (French)
n. - façade, devanture, devant, couverture (d'un livre), avant, endroit (d'un tissu), tête (d'un train), premier rang, en tête de, à côté, à l'avant, ventre, (Mil, Pol) front, (GB) front de mer, bord de mer, (Météo) front, côté (politique), (fig) façade, couverture (à qn)
adj. - devant, avant, de devant
v. tr. - donner une nouvelle façade à, présenter (une émission télévisée), (Pol) présenter un candidat, (Mus) diriger un orchestre
v. intr. - donner sur, servir de couverture à (un groupe, une organisation), (Mil) faire front
int. - en avant (excl), devant (excl)

idioms:

• front axle    essieu avant
• front bench    (GB) rangs du gouvernement
• front door    porte principale, porte d'entrée
• front line    (Mil) front, (fig) première ligne, (Sport) les avants (rugby)
• front man    figure représentative mais sans autorité
• front page    première page, les gros titres
• front runner    meneur, (Pol, gén) favori, (Sport) qui aime se positionner en tête de course
• in front    devant, en avant, d'avance (points), en tête
• in front of    en face de, devant
• in front of one's eyes    devant les/sous les yeux de qn
• on the front burner    urgent, (être) la priorité absolue
• out front    à l'entrée, en tête (des concurrents), (Théât) dans le public
• up front    avant, devant, en avance, très en vue

Deutsch (German)
n. - Vorderseite, Vorderteil, Fassade, Front, Strohmann, äußerer Anschein
v. - in eine Richtung liegen, zur Tarnung dienen, konfrontieren, mit einer Fassade versehen
adj. - vorder, Vorder-
int. - Page!

idioms:

• front axle    Vorderachse
• front bench    erste Sitzreihe (brit. Parlament)
• front door    Haustür
• front line    Frontlinie
• front man    Strohmann
• front page    Titelseite
• front runner    Spitzenkandidat
• in front    vorn
• in front of    vor
• in front of one's eyes    vor den Augen
• on the front burner    vorangestellt, (fig.) im Vordergrund, Mittelpunkt der Aufmerksamkeit
• out front    (AmL) von vorn, (AmE Spo) jmdm. zuvorkommen
• up front    im voraus, ehrlich

Ελληνική (Greek)
n. - (πολεμικό) μέτωπο, πρώτη γραμμή, πρόσοψη (οικοδομήματος κ.λπ.), φάτσα, πρώτη σειρά, παραλία, κάλυμμα, (πολιτικός κ.λπ.) συνασπισμός, (κοινό) μέτωπο, κυρία είσοδος, μπροστινή πόρτα, (καθομ.) μούτρα, αναίδεια, (μετεωρ.) μέτωπο
v. - αντικρίζω, αντιμετωπίζω, (για οικοδομές κ.λπ.) βλέπω, έχω θέα/προσανατολισμό/πρόσοψη (προς)
adj. - μπροστινός, εμπρόσθιος, μετωπικός, πρώτος, της πρώτης γραμμής
int. - μπροστά

idioms:

• front axle    μπροστινός άξονας
• front bench    υπουργικό εδώλιο/έδρανο
• front burner    συνεχής φροντίδα
• front door    εξώπορτα
• front line    πρώτη γραμμή, γραμμή μετώπου
• front man    εκπρόσωπος, (καθομ.) άνθρωπος-βιτρίνα
• front page    πρώτη σελίδα (εφημερίδας)
• front runner    επικεφαλής ομάδας αγωνιζόμενων
• in front    μπροστά
• in front of    εμπρός από
• in front of one's eyes    μπρος στα μάτια μου
• on the front burner    υπό εξέταση
• up front    έντιμος

Italiano (Italian)
davanti, facciata, prestanome, avanguardia, fronte, anteriore

idioms:

• front bench    esponenti di partito al parlamento
• front burner    importante
• front door    porta principale
• front line    fronte
• front man    prestanome, uomo di copertura, uomo di punta
• front page    prima pagina
• front runner    il favorito
• home/domestic front    fronte domestico
• in front    in testa
• in front of    davanti a

Português (Portuguese)
adv., -
adj. - dianteiro
n. - frente (f), rosto (m), fachada (f) (coloq.)
v. - enfrentar, estar voltado para

idioms:

• front bench    assentos (m pl) nas primeiras fileiras no parlamento inglês
• front burner    queimador de fogão mais utilizado
• front door    porta (f) de entrada
• front line    linha (f) de frente
• front man    representante (m)
• front page    capa (f) (de revista, livro)
• front runner    favorito (m)
• home/domestic front    setor (m) civil de uma nação em guerra
• in front    na frente
• in front of    na frente de
• up front    na dianteira

Русский (Russian)
перед, вперед, авансом, передний, фронт, афронт, наглость, ведущее место, фасад, набережная

idioms:

• front bench    скамьи для министров и лидеров оппозиции
• front burner    передняя горелка, передний план
• front door    передняя дверь
• front line    линия фронта, на передовой линии
• front man    представитель
• front page    первая страница, титульный лист
• front runner    лидер
• home/domestic front    домашний фронт
• in front    перед, впереди
• in front of    перед, впереди
• up front    впереди, перед, вперед (об оплате), честный, откровенный, наиболее известный

Español (Spanish)
n. - fachada, frente, frontispicio, parte delantera, portada, hombre de paja, testaferro, avanzadas, vanguardia
adj. - primero, delantero, principal
v. tr. - afrontar, hacer frente a , mirar a, aparecer delante de
v. intr. - estar enfrente de, oponerse
int. - de frente!

idioms:

• front axle    eje delantero
• front bench    (parlamento) escaños en las primeras filas ocupados por los ministros de gobierno o jefes de la oposición
• front door    puerta principal
• front line    primera línea
• front man    presentador, portavoz, representante, testaferro
• front page    primera plana
• front runner    favorito (en una competición)
• in front    delante, a la cabeza, al frente
• in front of    delante de, en la parte delantera de
• in front of one's eyes    delante de mis propios ojos
• on the front burner    que recibe mucha atención
• out front    en el público desde el punto de vista del intérprete, entre los espectadores
• up front    franco, directo, pago por adelantado, adelanto

Svenska (Swedish)
n. - framsida, front (mil.), front (meteor.), uppsyn, fasad, täckmantel, bulvan, skjortbröst, panna (poet.)
v. - vetta, vända framåt (mil.), mittåt! (kommandoord), bekläda med, möta (åld.)
adj. - framtill belägen, första
int. - mittåt!

中文（简体）(Chinese (Simplified))
前面, 前线, 开头, 前面的, 作掩护的, 正面的, 舌前的, 面对, 对付, 朝向

idioms:

• front axle    前轴
• front bench    前座议员
• front burner    前灶眼, 优先地位, 主要地位
• front door    正门, 大门
• front line    前线, 第一线
• front man    挂名负责人, 出面人物
• front page    标题版, 头版
• front runner    赛跑中领先第一者, 一路领先的人
• in front    在前面
• in front of    在...前面
• in front of one's eyes    在眼前
• on the front burner    当务之急, 最优先的事项
• up front    在前面, 预先

中文（繁體）(Chinese (Traditional))
n. - 前面, 前線, 開頭
adj. - 前面的, 作掩護的, 正面的, 舌前的
v. tr. - 面對, 對付, 朝向
v. intr. - 朝向

idioms:

• front axle    前軸
• front bench    前座議員
• front burner    前灶眼, 優先地位, 主要地位
• front door    正門, 大門
• front line    前線, 第一線
• front man    掛名負責人, 出面人物
• front page    標題版, 頭版
• front runner    賽跑中領先第一者, 一路領先的人
• in front    在前面
• in front of    在...前面
• in front of one's eyes    在眼前
• on the front burner    當務之急, 最優先的事項
• up front    在前面, 預先

한국어 (Korean)
n. - 앞부분, 유명인, 태도
adj. - 정면의 , 중요한
v. tr. - ~에 향하다, ~직면하다
v. intr. - 향하다, 면하다

idioms:

• in front    안쪽
• in front of    ~앞에, ~정면에
• in front of one's eyes    눈을 마주치다
• up front    선불의, 정직한, 앞에서, 용감한

日本語 (Japanese)
n. - 前部, 最前線, 土地, 遊歩道, 戦線, 顔つき, 前線, 胸の部分, 正面, 最前部
adj. - 前面の, 正面の, 前の
v. - 向かう, 面する, 前面に付ける

idioms:

• front axle    フロントアクスル
• front bench    最前列の席
• front burner    フロントバーナー, レンジの前のバーナー
• front door    正面玄関の入口, 合法的手段
• front line    最前線, 最先端
• front man    表看板の人物
• front page    とびら, 第一面
• front runner    先頭走者
• home/domestic front    国内戦線
• in front    前に, 前方の
• in front of    前に, 面前で
• in front of/under/before one's eyes    目の前に
• on the front burner    最優先事項で
• up front    前線に, 活動の前線に

العربيه (Arabic)
‏(الاسم) جبين , جبهه, واجهه (فعل) يواجه , يجابه (صفه) أمامي (نداء) الى المقدمه !‏

עברית (Hebrew)
n. - ‮חלק קדמי, חזית, קדמה, מסווה, פנים, כיסוי, שפת-הים, תירוץ, עמדה בולטת, עזות-מצח‬
adj. - ‮קדמי, חזיתי, מוסווה, תירוץ, עמדה בולטת, עזות-מצח‬
v. tr. - ‮הנהיג, פנה לעבר-, עמד מול‬
v. intr. - ‮עמד בחזית של, עמדה בולטת, עזות-מצח‬

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