B2adjectiveformal2K

Prime

UK /["/praɪm/"]/US /["/praɪm/"]/

Definition

main; most important; basic

In simple words: The best or most important part.

Examples

The prime reason for my decision was to ensure a better future.
He is in his prime, both physically and mentally.
The prime minister will announce new policies tomorrow.
The prime candidates for the position are all highly qualified.
In mathematics, a prime number is only divisible by itself and one.

Usage notes

Use 'prime' in formal contexts, like mathematics or when referring to something of high quality. Avoid using it in casual conversation.

Grammar pattern

standalone adjective

Memory hint

Think of 'prime' like 'prime time' - it's the best time for shows!

Collocations

prime example
prime time
prime number
prime minister
in prime condition

Synonyms

optimal
best
top
peak
superior

Antonyms

secondary
inferior

Common mistakes

Confusing 'prime' with 'primary', which has a different meaning.
Using 'prime' as a verb incorrectly; it's mostly an adjective.
Mixing up context; 'prime' should not be used casually.