A natural number that has exactly two distinct natural number divisors: 1 and itself.

synonym: prime quantity.

Roget 84: number, symbol, numeral, figure, cipher, digit, integer; counter; round number; formula; function; series.    sum, difference, complement, subtrahend; product; multiplicand, multiplier, multiplicator^†; coefficient, multiple; dividend, divisor, factor, quotient, submultiple [Math.]; fraction, rational number; surd, irrational number; transcendental number; mixed number, complex number, complex conjugate; numerator, denominator; decimal, circulating decimal, repetend; common measure, aliquot part; prime number, prime, relative prime, prime factor, prime pair; reciprocal; totient^†.    binary number, octal number, hexadecimal number [Comp.].    permutation, combination, variation; election.    ratio, proportion, comparison etc. 464; progression; arithmetical progression, geometrical progression, harmonical progression^†; percentage, permilage.    figurate numbers^†, pyramidal numbers, polygonal numbers.    power, root, exponent, index, logarithm, antilogarithm; modulus, base.    differential, integral, fluxion^†, fluent.    ... show more

Roget 125: morning, morn, forenoon, a.   m., prime, dawn, daybreak; dayspring^†, foreday^†, sunup; peep of day, break of day; aurora; first blush of the morning, first flush of the morning, prime of the morning; twilight, crepuscule, sunrise; cockcrow, cockcrowing^†; the small hours, the wee hours of the morning.    spring; vernal equinox, first point of Aries.    noon; midday, noonday; noontide, meridian, prime; nooning, noontime.    summer, midsummer.    ... show more

The period of greatest prosperity or productivity.

synonyms: bloom, blossom, efflorescence, flower, flush, heyday, peak.

Roget 648: goodness etc. adj.; excellence, merit; virtue etc. 944; value, worth, price.    super-excellence, supereminence; superiority etc. 33; perfection etc. 650; coup de maitre [Fr.]; masterpiece, chef d'ouvre [Fr.], prime, flower, cream, elite, pick, A 1, nonesuch, nonpareil, creme de la creme, flower of the flock, cock of the roost, salt of the earth; champion; prodigy.    tidbit; gem, gem of the first water; bijou, precious stone, jewel, pearl, diamond, ruby, brilliant, treasure; good thing; rara avis [Lat.], one in a thousand.    beneficence etc. 906; good man etc. 948.    ... show more

Dutch: bloeitijd, hoogtijdagen, bloeiperiode
Polish: szczyt

The second canonical hour; about 6 a.m..

Polish: pryma

The time of maturity when power and vigor are greatest.

synonym: prime of life.

Insert a primer into (a gun, mine, or charge) preparatory to detonation or firing.

Roget 673: prepare; get ready, make ready; make preparations, settle preliminaries, get up, sound the note of preparation.    set in order, put in order etc. (arrange) 60; forecast etc. (plan) 626; prepare the ground, plow the ground, dress the ground; till the soil, cultivate the soil; predispose, sow the seed, lay a train, dig a mine; lay the groundwork, fix the groundwork, lay the basis, fix the basis, lay the foundations, fix the foundations; dig the foundations, erect the scaffolding; lay the first stone etc. (begin) 66.    roughhew; cut out work; block out, hammer out; lick into shape etc. (form) 240.    elaborate, mature, ripen, mellow, season, bring to maturity; nurture etc. (aid) 707; hatch, cook, brew; temper, anneal, smelt; barbecue; infumate^†; maturate.    equip, arm, man; fit-out, fit up; furnish, rig, dress, garnish, betrim^†, accouter, array, fettle, fledge; dress up, furbish up, brush up, vamp up; refurbish; sharpen one's tools, trim one's foils, set, prime, attune; whet the knife, whet the sword; wind up, screw up; adjust etc. (fit) 27; put in trim, put in train, put in gear, put in working order, put in tune, put in a groove for, put in harness; pack.    train etc. (teach) 537; inure etc. (habituate) 613; breed; prepare for &c.; rehearse; make provision for; take steps, take measures, take precautions; provide, provide against; beat up for recruits; open the door to etc. (facilitate) 705.    set one's house in order, make all snug; clear the decks, clear for action; close one's ranks; shuffle the cards.    prepare oneself; serve an apprenticeship etc. (learn) 539; lay oneself out for, get into harness, gird up one's loins, buckle on one's armor, reculer pour mieux sauter [Fr.], prime and load, shoulder arms, get the steam up, put the horses to.    guard against, make sure against; forearm, make sure, prepare for the evil day, have a rod in pickle, provide against a rainy day, feather one's nest; lay in provisions etc. 637; make investments; keep on foot.    be prepared, be ready etc. adj.; hold oneself in readiness, keep one's powder dry; lie in wait for etc. (expect) 507; anticipate etc. (foresee) 510; principiis obstare [Lat.]; veniente occurrere morbo [Lat.].    ... show more

Cover with a primer; apply a primer to.

synonyms: ground, undercoat.

Roget 537: teach, instruct, educate, edify, school, tutor; cram, prime, coach; enlighten etc. (inform) 527.    inculcate, indoctrinate, inoculate, infuse, instill, infix, ingraft^†, infiltrate; imbue, impregnate, implant; graft, sow the seeds of, disseminate.    given an idea of; put up to, put in the way of; set right.    sharpen the wits, enlarge the mind; give new ideas, open the eyes, bring forward, teach the young idea how to shoot" [Thomson]; improve etc. 658.    expound etc. (interpret) 522; lecture; read a lesson, give a lesson, give a lecture, give a sermon, give a discourse; incept^†; hold forth, preach; sermonize, moralize; point a moral.    train, discipline; bring up, bring up to; form, ground, prepare, qualify; drill, exercise, practice, habituate, familiarize with, nurture, drynurse^†, breed, rear, take in hand; break, break in; tame; preinstruct^†; initiate; inure etc. (habituate) 613.    put to nurse, send to school.    direct, guide; direct attention to etc. (attention) 457; impress upon the mind, impress upon the memory; beat into, beat into the head; convince etc. (belief) 484.    [instructional materials] book, workbook, exercise book.    [unnecessary teaching] preach to the wise, teach one's grandmother to suck eggs, teach granny to suck eggs; preach to the converted.    ... show more

Dutch: gronden

Fill with priming liquid.

First in rank or degree:
— The prime minister.

synonym: premier.

Roget 84: numeral, complementary, divisible, aliquot, reciprocal, prime, relatively prime, fractional, decimal, figurate^†, incommensurable.    proportional, exponential, logarithmic, logometric^†, differential, fluxional^†, integral, totitive^†.    positive, negative; rational, irrational; surd, radical, real; complex, imaginary; finite; infinite; impossible.    ... show more

Roget 124: old, ancient, antique; of long standing, time-honored, venerable; elder, eldest; firstborn.    prime; primitive, primeval, primigenous^†; paleolontological, paleontologic, paleoanthropological, paleoanthropic^†, paleolithic, primordial, primordinate^†; aboriginal etc. (beginning) 66; diluvian^†, antediluvian; protohistoric^†; prehistoric; antebellum, colonial, precolumbian; patriarchal, preadamite^†; paleocrystic^†; fossil, paleozoolical, paleozoic, preglacial^†, antemundane^†; archaic, classic, medieval, Pre-Raphaelite, ancestral, black-letter.    immemorial, traditional, prescriptive, customary, whereof the memory of man runneth not to the whereof the memory of man runneth not to the contrary; inveterate, rooted.    antiquated, of other times, rococo, of the old school, after-age, obsolete; out of date, out of fashion, out of it; stale, old-fashioned, behind the age; old-world; exploded; gone out, gone by; passe, run out; senile etc. 128; time worn; crumbling etc. (deteriorated) 659; secondhand.    old as the hills, old as Methuselah, old as Adam^†, old as history.    [geological eras (list, starting at given number of years bp)] Archeozoic [5,000,000,000], Proterozoic [1,500,000,000], Paleozoic [600,000,000], Mesozoic [220,000,000], Cenozoic [70,000,000]. [geological periods] Precambrian, Cambrian [600,000,000], Ordovician [500,000,000], Silurian [440,000,000], Devonian [400,000,000], Mississippian [350,000,000], Pennsylvanian [300,000,000], Permian [270,000,000], Triassic [220,000,000], Jurassic [180,000,000], Cretaceous [135,000,000], Tertiary [70,000,000], Paleogene [70,000,000], Neocene [25,0000,000], Quaternary [1,000,000]. [geological epochs (list, starting at 70,000,000 years bp)] Paleocene, Eocene, Oligocene, Miocene, Pliocene, Pleistocene, Recent.    ... show more

Roget 132: early, prime, forward; prompt etc. (active) 682; summary.    premature, precipitate, precocious; prevenient^†, anticipatory; rath^†.    sudden etc. (instantaneous) 113; unexpected etc. 508; near, near at hand; immediate.    ... show more

Roget 642: important; of importance etc. n.; momentous, material; to the point; not to be overlooked, not to be despised, not to be sneezed at; egregious; weighty etc. (influential) 175; of note etc. (repute) 873; notable, prominent, salient, signal; memorable, remarkable; unforgettable; worthy of remark, worthy of notice; never to be forgotten; stirring, eventful.    grave, serious, earnest, noble, grand, solemn, impressive, commanding, imposing.    urgent, pressing, critical, instant.    paramount, essential, vital, all-absorbing, radical, cardinal, chief, main, prime, primary, principal, leading, capital, foremost, overruling; of vital importance &c.. in the front rank, first-rate; superior etc. 33; considerable etc. (great) 31; marked etc. v.; rare etc. 137.    significant, telling, trenchant, emphatic, pregnant; tanti [Lat.].    ... show more

Used of the first or originating agent.

Of superior grade:
— Prime beef.

synonyms: choice, prize, quality, select.

Roget 648: harmless, hurtless^†; unobnoxious^†, innocuous, innocent, inoffensive.    beneficial, valuable, of value; serviceable etc. (useful) 644; advantageous, edifying, profitable; salutary etc. (healthful) 656.    favorable; propitious etc. (hope-giving) 858; fair.    good, good as gold; excellent; better; superior etc. 33; above par; nice, fine; genuine etc. (true) 494.    best, choice, select, picked, elect, recherche, rare, priceless; unparagoned^†, unparalleled etc. (supreme) 33; superlatively etc. 33; good; bully [Slang], crackajack [Slang], giltedged; superfine, superexcellent^†; of the first water; first-rate, first-class; high-wrought, exquisite, very best, crack, prime, tiptop, capital, cardinal; standard etc. (perfect) 650; inimitable.    admirable, estimable; praiseworthy etc. (approve) 931; pleasing etc. 829; couleur de rose [Fr.], precious, of great price; costly etc. (dear) 814; worth its weight in gold, worth a Jew's eye; priceless, invaluable, inestimable, precious as the apple of the eye.    tolerable etc. (not very good) 651; up to the mark, unexceptionable, unobjectionable; satisfactory, tidy.    in good condition, in fair condition; fresh; sound etc. (perfect) 650.    ... show more

Polish: doborowy, wyborowy

Of or relating to or being an integer that cannot be factored into other integers.

Being at the best stage of development:
— Our manhood's prime vigor.

synonym: meridian.