thirty
- 01 A1 Beginner
num.the number 30.
num.the cardinal number occurring after twenty-nine and before thirty-one.
Simple“There are thirty days in the month of September.”
In context“The research team spent thirty days collecting samples from the remote site before returning to the laboratory for analysis.”
- 02 A2 Elementary
n.the age of thirty years old.
n.the specific age of thirty years; often used in the plural to refer to the decade of a person's life.
Simple“She decided to change her career when she turned thirty.”
In context“Many professionals experience a significant shift in their career goals as they approach thirty and seek greater stability.”
- 03 C1 Advanced
n.a television or radio advertisement that lasts for thirty seconds.
n.a commercial broadcast lasting exactly thirty seconds.
Simple“The company paid a lot of money for a thirty during the big game.”
In context“The marketing agency focused on producing a high-impact thirty that would capture the audience's attention during the prime-time broadcast.”
Synonyms - 04 C2 Proficiency
n.a large box containing thirty cans or bottles of beer.
n.a pack or 'rack' containing thirty units of beer.
Simple“He picked up a thirty on his way to the party.”
In context“The students arrived at the beach house with a thirty of cheap lager, prepared for the weekend celebrations.”
Synonymsthirty pack
From Middle English thirty, metathetic alternant of Middle English thriti, þrittiȝ, from Old English þrītiġ (“thirty”), from Proto-Germanic *þrīz tigiwiz (“thirty”, literally “three tens”), equivalent to three + -ty. Cognate with Scots therty, tretty (“thirty”), West Frisian tritich (“thirty”), Dutch dertig (“thirty”), German dreißig (“thirty”).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.