← Dictionary

prime

/praɪm/
IELTSAcademic
adjective

Best, most important, or at the highest level. It often means someone or something is in top condition, value, or quality.

  • This is the prime time for investment.
  • She is in the prime of her career.
verb

To prepare something for use. It can also mean to get someone ready for an action or response.

  • Prime the wall before painting it.
  • The coach primed the team for victory.
noun

The best or most active period of life, work, or success. In mathematics, a prime is a number greater than 1 with only two factors.

  • He retired in his prime.
  • Seven is a prime.

Adinary Nuance

Prime is stronger and more selective than best or top. It often suggests the highest-quality moment, condition, or part of something. In writing, it sounds more formal than everyday words like main or good.

In other languages

Vietnamese
đỉnh cao
Spanish
cima
Chinese
巅峰
Japanese
最盛期
Korean
전성기

Etymology

From Latin primus, meaning 'first'. The word entered English through Old French in the Middle Ages.

Common phrases

in one's primeprime timeprime exampleprime condition

Synonyms

Related words

Frequently asked questions

Is prime a formal word?
It is fairly formal, especially in writing and academic English.
What is the difference between prime and best?
Prime often means the best period or highest condition, while best is more general.
Can prime mean a number?
Yes. A prime number has only two factors: 1 and itself.
How do I use prime in a sentence?
Use it before a noun, or as a noun for a best period of life.