1. first in excellence, quality, or value. see usage note at perfect.
2. first in degree or rank; chief. see synonyms at chief.
3. first or early in time, order, or sequence; original.
4. of the highest U.S. government grade of meat.
5. mathematics of, relating to, or being a prime number.
6. the earliest hours of the day; dawn.
7. the first season of the year; spring.
8. the age of ideal physical perfection and intellectual vigor.
9. the period or phase of ideal or peak condition. see synonyms at bloom1.
10. the first position of thrust and parry in fencing.
11. A mark (ʹ) appended above and to the right of a character, especially:
12. one used to distinguish different values of the same variable in a mathematical expression.
13. one used to represent a unit of measurement, such as feet or minutes in latitude and longitude.
14. ecclesiastical the second of the seven canonical hours. no longer in liturgical use.
15. ecclesiastical the time appointed for this service, the first hour of the day or 6 A.M.
16. mathematics A prime number.
17. A prime rate.
18. see primitive.
19. to make ready; prepare: guard dogs primed for attack.
20. to prepare (a gun or mine) for firing by inserting a charge of gunpowder or a primer.
21. to prepare for operation, as by pouring water into a pump or gasoline into a carburetor.
22. to prepare (a surface) for painting by covering with size, primer, or an undercoat.
23. to inform or instruct beforehand; coach.
24. to become prepared for future action or operation.
25. prime the pump informal to encourage the growth or action of something.

1. first in importance, degree, or rank.
2. first in time, order, or sequence
3. first in excellence, quality, or value.
4. having exactly two integral factors: itself and unity (1 in the case of integers).
5. such that if it divides a product, it divides one of the multiplicands.
6. having its complement closed under multiplication: said only of ideals.
7. one of the daily offices of prayer of the western church, associated with the early morning (typically 6 a.m.).
8. the early morning.
9. the earliest stage of something.
10. the most active, thriving, or successful stage or period.
11. the chief or best individual or part.
12. the first note or tone of a musical scale.
13. the first defensive position, with the sword hand held at head height, and the tip of the sword at head height.
14. A prime element of a mathematical structure, particularly a prime number.
15. A four-card hand containing one card of each suit in the game of primero; the opposite of a flush in poker.
16. six consecutive blocks, which prevent the opponent's pieces from passing.
17. the symbol: ′
18. to prepare a mechanism for its main work.
19. to apply a coat of primer paint to.
20. to be renewed.
21. to serve as priming for the charge of a gun.
22. to work so that foaming occurs from too violent ebullition, which causes water to become mixed with, and be carried along with, the steam that is formed.

1. first in order of time; original; primeval; primitive; primary.
2. first in rank, degree, dignity, authority, or importance.
3. first in excellence; of highest quality
4. early; blooming; being in the first stage.
5. lecherous; lustful; lewd.
6. marked or distinguished by a mark (') called a prime mark.
7.
8. divisible by no number except itself or unity.
9. having no common factor; -- used with to.
10. the first part; the earliest stage; the beginning or opening, as of the day, the year, etc.; hence, the dawn; the spring.
11. the spring of life; youth; hence, full health, strength, or beauty; perfection.
12. that which is first in quantity; the most excellent portion; the best part.
13. the morning; specifically (R. C. ch.), the first canonical hour, succeeding to lauds.
14. the first of the chief guards.
15. any number expressing the combining weight or equivalent of any particular element; -- so called because these numbers were respectively reduced to their lowest relative terms on the fixed standard of hydrogen as 1.
16. A prime number. see under prime, a.
17. an inch, as composed of twelve seconds in the duodecimal system; -- denoted by [']. see 2d inch, n., 1.
18. to be renewed, or as at first.
19. to serve as priming for the charge of a gun.
20. to work so that foaming occurs from too violent ebullition, which causes water to become mixed with, and be carried along with, the steam that is formed; -- said of a steam boiler.
21. to apply priming to, as a musket or a cannon; to apply a primer to, as a metallic cartridge.
22. to lay the first color, coating, or preparation upon (a surface), as in painting.
23. to prepare; to make ready; to instruct beforehand; to post; to coach
24. to trim or prune, as trees.
25. to mark with a prime mark.

1. first in order of time; primitive; original: as, the prime cost.
2. first in rank, degree, or importance; principal; chief: as, prime minister.
3. of the first excellence, value, or importance; first-rate; capital: as, prime wheat; prime quality; a prime joint of meat.
4. relating to the period or the condition of early manhood and vigor; being in the best or most vigorous time of life. see prime, n., 3.
5. ready; eager; bold.
6. fierce; strong.
7. in mathematics, indivisible without a remainder, except by unity; incapable of being separated into simpler factors.
8. A machine which receives and modifies force as supplied by some natural source, as a water-wheel or a steam-engine.
9.
10. the first period; the earliest stage or beginning; specifically, spring.
11. the first hour or period of the day.
12. in a more extended sense, from the fact that the lesser canonical hours followed at intervals of three hours, the first quarter of the time between sunrise and sunset, ending half-way between sunrise and midday.
13. the spring of life; youth; full health, strength, or beauty; hence, the highest or most perfect state or most flourishing condition of anything.
14. the best part; that which is best in quality; that which is of prime or high quality or grade, as fish, oysters, etc.; often, in the plural, a prime grade or quality.
15. in fencing: the first of eight parries or guards against thrusts in sword-play, afterward retained in exercise with the foils; the first guard a swordsman surprised by an attack could make, while drawing his weapon from the scabbard near his left thigh.
16. hence — sometimes, the first and simplest thrust (and parry) which can be made after two fencers have crossed foils and are “on guard” with the left sides of their foils touching: used thus for the direct thrust.
17. in chem., a number employed, in conformity with the doctrine of definite proportions, to express the ratios in which bodies enter into combination.
18. A prime number; an integer number not divisible without remainder by any number except itself and unity.
19.
20. A term used in the playing of this game.
21. in music: A tone on the same degree of the scale or staff with a given tone.
22. the interval between any tone and a tone on the same degree with it.
23. the simultaneous combination of two tones on the same degree.
24. in a scale, the first tone; the tonic or keynote.
25. one of the fractions into which a unit is immediately divided; a minute.
26. the footsteps of a deer.
27. to be as at first; be renewed.
28. to insert a primer or priming-powder into the vent of a gun before firing.
29. in the steam-engine, to carry over hot water with the steam from the boiler into the cylinder: as, the engine primes. see primage, 2.
30. to perform the prime or first operation upon or with; prepare.
31. to cover with a ground or first color or coat in painting or plastering.
32. to put in a fit state to act or endure; make ready; especially, to instruct or prepare (a person) beforehand in what he is to say or do; “post”: as, to prime a person with a speech; to prime a witness.
33. to trim or prune.
34. to occur or come in advance of others: thus, flood-tide lags between new moon and full moon, but primes between full and new.
35. to have precedence, as one claim over another.
36. in tobacco-growing: to gather the ripe lower leaves from: said of the plant.
37. to gather as ripe: said of leaves.
38. to gather later instalments of (leaves). see priming, 5.
39. the golden number: so called because it shows the prime of the moon.
40. the grade next below the finest variety of a fleece of merino wool.

1. of or relating to or being an integer that cannot be factored into other integers
2. a number that has no factor but itself and 1
3. the second canonical hour; about 6 a.m.
4. of superior grade
5. cover with a primer; apply a primer to
6. insert a primer into (a gun, mine, or charge) preparatory to detonation or firing
7. being at the best stage of development
8. fill with priming liquid
9. the period of greatest prosperity or productivity
10. used of the first or originating agent
11. the time of maturity when power and vigor are greatest
12. first in rank or degree