n.

1. The act or an instance of becoming open or being made to open.
2. An open space serving as a passage or gap.
3. A breach or aperture.
4. A clearing in the woods.
5. The first part or stage, as of a book.
6. The first performance: the opening of a play.
7. A formal commencement of operation: attended the opening of the new museum.
8. Games. A specific pattern or series of beginning moves in certain games, especially chess.
9. An opportunity affording a chance of success. See synonyms at opportunity.
10. An unfilled job or position; a vacancy.

Customer's order to a broker to buy or sell a security at the price that applies when an exchange opens. If the order is not executed at that time, it is automatically canceled.

noun

1. An open space allowing passage: aperture, hole, mouth, orifice, outlet, vent. See open/close.
2. The initial stage of a developmental process: beginning, birth, commencement, dawn, genesis, inception, nascence, nascency, onset, origin, outset, spring, start. See start/end.
3. The act or process of bringing or being brought into existence: beginning, commencement, inauguration, inception, incipience, incipiency, initiation, launch, leadoff, origination, start. Informal kickoff. See start/end.
4. A favorable or advantageous combination of circumstances: break, chance, occasion, opportunity. Informal shot. See luck/misfortune/chance.

n

Definition: beginning
Antonyms: closing, conclusion, ending, finish

n

Definition: chance
Antonyms: misfortune

n

Definition: gap, hole
Antonyms: closing, closure, solid

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An aperture, orifice or open space.

• aortic o. — 1. the aperture of the ventricle into the aorta.
— 2. the aperture in the diaphragm for passage of the descending aorta.
• cardiac o. — the opening from the esophagus into the stomach.
• pyloric o. — the opening between the stomach and duodenum.

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IN BRIEF: n. - The first of a series of actions; An entrance equipped with a hatch.

The principal mark of a genius is not perfection but originality, the opening of new frontiers. — Arthur Koestler

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Dansk (Danish)
n. - åbning, hul, indledning, lovende mulighed, udvej
adj. - åbnings-, indledende, indlednings-, begyndelses-, første

idioms:

• opening hours    åbningstider
• opening night    premiere
• opening time    åbningstidspunkt

Nederlands (Dutch)
opening, gat, aanhef, afzetgebied, vacature, begin(-)

Français (French)
n. - début, ouverture, inauguration, trouée, (gén) occasion, (Comm) débouché, créneau, marché, poste (vacant), possibilité de travail, ouverture (des jeux)
adj. - premier (un chapitre, une scène), préliminaire (une remarque), (Fin) de départ, d'ouverture (à la Bourse), premier (un mouvement, un tir)

idioms:

• opening hours    (Comm) heures d'ouverture
• opening night    (Cin, Théât) (soir) de la première
• opening time    (Comm) heure d'ouverture

Deutsch (German)
n. - (Er)öffnen, Öffnung, Möglichkeit, Eröffnung, freie Stelle
adj. - Öffnungs...

idioms:

• opening hours    Öffnungszeiten
• opening night    Premiere
• opening time    Öffnungszeit

Ελληνική (Greek)
n. - διάνοιξη, άνοιγμα, κενό, οπή, κούφωμα, ρωγμή, τρύπα, αρχή, έναρξη, ξεκίνημα, ευκαιρία, χηρεύουσα, κενή θέση

idioms:

• opening hours    ώρες λειτουργίας (καταστήματος κλπ.)
• opening night    πρεμιέρα
• opening time    ώρα ανοίγματος, ώρα έναρξης λειτουργίας

Italiano (Italian)
apertura, sbocco, opportunità

idioms:

• opening hours    orario di apertura
• opening night    prima
• opening time    periodo di apertura

Português (Portuguese)
n. - abertura (f)

idioms:

• opening hours    horário de abertura
• opening night    noite de estréia
• opening time    horário de abertura

Русский (Russian)
щель, открытие, ниша, вакансия

idioms:

• opening hours    часы работы
• opening night    премьера
• opening time    время открытия

Español (Spanish)
n. - abertura, grieta, brecha, claro, apertura, comienzo, principio, estreno, inauguración, oportunidad, vacante
adj. - primero, que empieza

idioms:

• opening hours    horario de servicio
• opening night    noche de estreno
• opening time    hora en que abren los bares

Svenska (Swedish)
n. - öppnande

中文（简体） (Chinese (Simplified))
开始, 开会, 开头, 开始的部分, 开始的, 开幕的

idioms:

• opening hours    开放时间, 营业时间
• opening night    首演的第一个晚上
• opening time    开放时间, 开始营业时间

中文（繁體） (Chinese (Traditional))
n. - 開始, 開會, 開頭, 開始的部分
adj. - 開始的, 開幕的

idioms:

• opening hours    開放時間, 營業時間
• opening night    首演的第一個晚上
• opening time    開放時間, 開始營業時間

한국어 (Korean)
n. - 개방, 통로, 광장, 돈벌이
adj. - 시작의

日本語 (Japanese)
n. - 開くこと, 開始, 序幕, 空き, 空き地, 広場, 就職口, もうけ口, 開口, 空席, 穴, 欠員
adj. - 始めの, 開始の

idioms:

• opening hours    営業時間
• opening night    初日の夜
• opening time    始業時間, 開くのに要する時間

العربيه (Arabic)
‏(الاسم) افتتاح, فرصه‏

עברית (Hebrew)
n. - ‮פתיחה, פתח, משרה פנויה, פרצה, סיכוי, הזדמנות‬
adj. - ‮פותח, ראשון, תחילי‬

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