adjective
always used before a noun
most important :primary
of the highest quality or value :excellent
used to say that someone or something is a very good example of a particular kind of person or thing
most likely or very likely to be chosen for something, to experience something, etc.
noun
[singular] :the period in life when a person is best in health, strength, etc. :the most active or successful time of a person's life
[noncount] technical :prime rate
verb
primes; primed; priming
[+ obj] to make (someone) ready to do something :prepare
to make (something) ready for use
to cover (a surface) with special paint in order to prepare it for the final layer of paint
prime the pump
to do something that will help a thing to grow or develop