• Greek: δευτερεύων (defterévon)
• Dutch: secundair

• Dutch: plaatsvervangend, plaatsvervangende

See also

• primary (1)
• secondary (2)
• tertiary (3)
• quaternary (4)
• quinary (5)
• senary (6)
• septenary (7)
• octonary (8)
• nonary (9)
• denary (10)
• duodenary (12)
• vigenary (20)

Secondary is an adjective meaning "second" or "second hand". It may refer to:

• Secondary education
• A secondary consumer in an ecological sense
• Secondary dominant, in music
• Secondary, in American football and Canadian football, the group of (usually at least four) defensive backs
• A Secondary functional group (or usually ion) attached to carbon atom connected to 2 other Carbon atoms in organic chemistry
• Secondaries, the second-largest group of remiges (wing feathers), which attach to the inner lower arm
• Secondary circuit, electrical circuit in a Transformer in which current is produced by electromagnetic induction, as opposed to a primary circuit

Janus-like, Maxwell triangle, Munsell scale, accessory, accident, accidental, addendum, addition, additional, adjunct, adscititious, adventitious, advocate, agent, alter ego, alternate, alternative, ambidextrous, amicus curiae, analogy, ancillary, appendage, appurtenance, appurtenant, ascititious, assistant, attorney, auxiliary, backup, backup man, bifacial, bifold, biform, bilateral, binary, binate, biparous, bivalent, borrowed, casual, champion, change, changeling, chromatic circle, chromatic spectrum, chromaticity diagram, circumstantial, cog, collateral, color circle, color cycle, color index, color mixture curve, color solid, color spectrum, color system, color triangle, coming, common, commonality, commonalty, comparison, complementary color, conduplicate, consequent, contingency, contingent, copied, copy, counterfeit, covert, creature, demeaning, demitint, dependent, deputy, derivational, derivative, derived, dinky, disadvantaged, disomatous, double, double-faced, dual, dummy, duple, duplex, duplicate, employee, equal, equivalent, ersatz, eventual, exchange, executive officer, exponent, extra, fake, feather, feathers, figurehead, fill-in, final, flunky, follower, fortuitous, full color, fundamental colors, geminate, geminated, ghost, ghostwriter, hackle, half tint, halftone, happenstance, helper, hoi polloi, hue cycle, humble, imitated, imitation, in the shade, incidental, indirect, inessential, inferior, infra dig, insignificant, junior, last, less, lesser, lieutenant, lightweight, locum, locum tenens, low, low-priority, lower, lower class, lower orders, lowly, mail, makeshift, marginal, masses, mere chance, metamer, metaphor, metonymy, minor, mock, modest, monochrome, next best thing, no great shakes, nonessential, not-self, of no account, of no consequence, of no matter, of no significance, ordinary, other, paranymph, pawn, personnel, phony, pinch, pinch hitter, pleader, plumage, poor relation, primary, primary color, procurator, provisional, proxy, pure color, relief, replacement, representative, reserve, reserves, resultant, right-hand man, ringer, scrub, second, second fiddle, second in command, second rank, second string, secondary color, secondhand, servant, servile, sign, small, small-fry, small-time, solar spectrum, spare, spares, spectral color, spectrum, spectrum color, speculum, stand-in, stopgap, sub, subaltern, subject, subordinate, subsequent, subservient, subsidiary, substituent, substitute, substitution, succedaneum, superadded, superaddition, superfluous, superseder, supervenient, supplanter, supplement, supplemental, supplementary, supporting, supportive, surrogate, symbol, synecdoche, temporary, tentative, tertiary, tertiary color, third rank, third string, third stringer, token, tributary, twin, twinned, two-faced, two-level, two-ply, two-sided, two-story, twofold, ultimate, under, underling, underprivileged, understrapper, understudy, unessential, unimportant, unoriginal, utility, utility man, utility player, vicar, vicar general, vicarious, vice, vice-president, vice-regent, vicegerent, vulgar, yes-man