time period, period of time, period

an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"

• trial period, test period — a period of time during which someone or something is tested
• time frame — a time period during which something occurs or is expected to occur
• hours — an indefinite period of time
• downtime — a period of time when something (as a machine or factory) is not operating (especially as a result of malfunctions)
• uptime — a period of time when something (as a machine or factory) is functioning and available for use
• work time — a time period when you are required to work
• time off — a time period when you are not required to work
• hospitalization — a period of time when you are confined to a hospital
• travel time — a period of time spent traveling
• time — an indefinite period (usually marked by specific attributes or activities)
• elapsed time — the time that elapses while some event is occurring
• duration, continuance — the period of time during which something continues
• week, calendar week — a period of seven consecutive days starting on Sunday
• field day — a time of unusual pleasure and success
• life, lifetime, lifespan — the period during which something is functional (as between birth and death)
• life — the period between birth and the present time
• life — the period from the present until death
• millennium — a span of 1000 years
• bimillennium, bimillenary — a span of 2000 years
• occupation — the period of time during which a place or position or nation is occupied
• past — a earlier period in someone's life (especially one that they have reason to keep secret)
• shelf life — the length of time a packaged food or drug will last without deteriorating
• puerperium — time period following childbirth when the mother's uterus shrinks and the other functional and anatomic changes of pregnancy are resolved
• lactation — the period following birth during which milk is secreted
• time of life — a period of time during which a person is normally in a particular life state
• calendar day, civil day — a day reckoned from midnight to midnight
• festival — a day or period of time set aside for feasting and celebration
• day, daytime, daylight — the time after sunrise and before sunset while it is light outside
• morning, morn, morning time, forenoon — the time period between dawn and noon
• night, nighttime, dark — the time after sunset and before sunrise while it is dark outside
• night — the time between sunset and midnight
• night — the period spent sleeping
• night — a period of ignorance or backwardness or gloom
• eve — the period immediately before something
• evening — the early part of night (from dinner until bedtime) spent in a special way
• week, hebdomad — any period of seven consecutive days
• fortnight, two weeks — a period of fourteen consecutive days
• weekend — usually Friday night through Sunday
• point, point in time — a very short period of time
• Indian summer, Saint Martin's summer — a period of unusually warm weather in the autumn
• year — the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun
• school, schooltime — the period of instruction in a school
• year, twelvemonth, yr — a period of time containing 365 (or 366) days
• year — a period of time occupying a regular part of a calendar year that is used for some particular activity
• semester — half a year; a period of 6 months
• bimester — a period of 2 months
• Olympiad — one of the 4-year intervals between Olympic Games; used to reckon time in ancient Greece for twelve centuries beginning in 776 BC
• lustrum — a period of five years
• decade, decennary, decennium — a period of 10 years
• century — 100 years
• half-century — 50 years
• quarter-century — 25 years
• quarter — a fourth part of a year; three months
• phase of the moon — a time when the moon presents a particular recurring appearance
• day — the period of time taken by a particular planet (e.g. Mars) to make a complete rotation on its axis
• calendar month, month — one of the twelve divisions of the calendar year
• mid-January — the middle part of January
• mid-February — the middle part of February
• mid-March — the middle part of March
• mid-April — the middle part of April
• mid-May — the middle part of May
• mid-June — the middle part of June
• mid-July — the middle part of July
• mid-August — the middle part of August
• mid-September — the middle part of September
• mid-October — the middle part of October
• mid-November — the middle part of November
• mid-December — the middle part of December
• time limit — a time period within which something must be done or completed
• term — a limited period of time
• trimester — a period of three months; especially one of the three three-month periods into which human pregnancy is divided
• hour — a special and memorable period
• silly season — a time usually late summer characterized by exaggerated news stories about frivolous matters for want of real news
• Golden Age — (classical mythology) the first and best age of the world, a time of ideal happiness, prosperity, and innocence; by extension, any flourishing and outstanding period
• silver age — (classical mythology) the second age of the world, characterized by opulence and irreligion; by extension, a period secondary in achievement to a golden age
• bronze age — (classical mythology) the third age of the world, marked by war and violence
• Bronze Age — (archeology) a period between the Stone and Iron ages, characterized by the manufacture and use of bronze tools and weapons
• iron age — (classical mythology) the last and worst age of the world
• Iron Age — (archeology) the period following the Bronze Age; characterized by rapid spread of iron tools and weapons
• Stone Age — (archeology) the earliest known period of human culture, characterized by the use of stone implements
• Eolithic Age — the earliest part of the Stone Age marked by the earliest signs of human culture
• Paleolithic Age — second part of the Stone Age beginning about 750,000 years ago
• Mesolithic Age — middle part of the Stone Age beginning about 15,000 years ago
• Neolithic Age — latest part of the Stone Age beginning about 10,000 BC in the middle east (but later elsewhere)
• great year, Platonic year — time required for one complete cycle of the precession of the equinoxes, about 25,800 years
• regulation time — (sports) the normal prescribed duration of a game
• overtime, extra time — playing time beyond regulation, to break a tie
• season, time of year — one of the natural periods into which the year is divided by the equinoxes and solstices or atmospheric conditions
• dog days, canicule, canicular days — the hot period between early July and early September; a period of inactivity
• midwinter — the middle of winter
• season — a recurrent time marked by major holidays
• season — a period of the year marked by special events or activities in some field
• long time, age, years — a prolonged period of time
• long run, long haul — a period of time sufficient for factors to work themselves out
• drought — a prolonged shortage
• era, epoch — a period marked by distinctive character or reckoned from a fixed point or event
• generation — the normal time between successive generations
• prehistory — the time during human development before the appearance of the written word
• reign — a period during which something or somebody is dominant or powerful
• youth, early days — an early period of development
• dawn — an opening time period
• evening — a later concluding time period
• time — a period of time considered as a resource under your control and sufficient to accomplish something
• sleep, nap — a period of time spent sleeping
• lease, term of a contract — the period of time during which a contract conveying property to a person is in effect
• half life, half-life — the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)
• tide, lunar time period — there are usually two high and two low tides each day
• phase, stage — any distinct time period in a sequence of events
• multistage — occurring in more than one stage
• watch — the period during which someone (especially a guard) is on duty
• peacetime — a period of time during which there is no war
• wartime — a period of time during which there is armed conflict
• enlistment, hitch, term of enlistment, tour of duty, duty tour, tour — a period of time spent in military service
• honeymoon — the early usually calm and harmonious period of a relationship; business or political
• indiction — a 15-year cycle used as a chronological unit in ancient Rome and adopted in some medieval kingdoms
• Depression, the Depression, the Great Depression — a time period during the 1930s when there was a worldwide economic depression and mass unemployment
• prohibition, prohibition era — the period from 1920 to 1933 when the sale of alcoholic beverages was prohibited in the United States by a constitutional amendment
• incubation period — the period between infection and the appearance of symptoms of the disease
• rainy day — a (future) time of financial need
• novitiate, noviciate — the period during which you are a novice (especially in a religious order)
• flower, prime, peak, heyday, bloom, blossom, efflorescence, flush — the period of greatest prosperity or productivity
• running time — the length of time that a movie or tv show runs
• period, historic period, historical period — a stage in the history of a culture having a definable place in space and time
• clotting time — the time it takes for a sample of blood to clot; used to diagnose some clotting disorders
• question time — (United Kingdom) a period during a parliamentary session when members of Parliament may ask questions of the ministers
• real time — (computer science) the time it takes for a process under computer control to occur
• study hall — a period of time during the school day that is set aside for study
• usance — (commerce) the period of time permitted by commercial usage for the payment of a bill of exchange (especially a foreign bill of exchange)

• fundamental quantity, fundamental measure — one of the four quantities that are the basis of systems of measurement