Definitions of prime:

• noun:   a number that has no factor but itself and 1
• noun:   the time of maturity when power and vigor are greatest
• noun:   the second canonical hour; about 6 a.m.
• noun:   the period of greatest prosperity or productivity
• verb:   insert a primer into (a gun, mine, charge, etc.) preparatory to detonation or firing

  Example: "Prime a cannon"

• verb:   fill with priming liquid

  Example: "Prime a car engine"

• verb:   cover with a primer; apply a primer to
• adjective:   at the best stage

  Example: "Our manhood's prime vigor- Robert Browning"

• adjective:   of or relating to or being an integer that cannot be factored into other integers

  Example: "Prime number"

• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #11799)