Use the word "prime" to talk about things that are of good quality or when a person is at his or her best.
At forty-seven, Bob feels like he’s in the prime of his life. (This is a stage of life when a person is at full strength mentally, physically, socially, financially, etc.)
When Joe was in his prime, he was able to play tennis for hours and hours. Now he can’t do that.
Julia is at her prime when she’s surrounded by her friends and others who support her.
Steak lovers enjoy prime rib because it’s so juicy and tender. (prime rib = a high quality cut of meat from a cow)
Retailers look for prime locations in which to sell their products.
A labrador is a prime breed of dog for hunting or companionship.
He feels like in the prime of his life.
When used as a verb, a person primes another person or a thing to be prepared for some activity or purpose:
You should prime bare wood with a primer before applying paint.
Jerry primed his car before he painted it with a top coat.
Sheetrock should be primed before it’s painted.
Matt is being primed for a V.P. position at the company where he works. (V.P. = vice president)
Sophia’s boss is priming her to take over the accounting department.
Our dog is being primed for hunting by a professional dog trainer.
The word "prime" is used before the word "minister" when referring to the top political leader in countries that have a parliamentary system of governement.
The current Prime Minister of the United Kingdom is Boris Johnson.
Narendra Moti was elected as the Prime Minister of India in 2014.