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1. A word having the same or nearly the same meaning as another word or other words in a language.
2. A word or expression that serves as a figurative or symbolic substitute for another: "Romeo has become a synonym for any youthful lover" (Harry Levin).
3. Biology One of two or more scientific names that have been applied to the same species or other taxonomic group.

[Middle English sinonyme, from Old French synonyme, from Latin synōnymum, from Greek sunōnumon, from neuter of sunōnumos, synonymous; see synonymous.]

syn′o·nym′ic, syn′o·nym′i·cal adj.
syn′o·nym′i·ty n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
<pre> SYNONYMIC OFFSPRING loveage (lovage) GO - LEAVE capture CUT - PARE chainless SHIN - SCALE superates REST - PAUSE delimitate ITEM - DETAIL paltriest SPLIT - TEAR literal AIR - TELL parents NAP - REST cameralists CLAIM - ASSERT readvise AID - SERVE charades RACE - DASH spikenel (spignel, a plant) PEEL - SKIN batterings START - BEGIN threnodial RETAIN - HOLD treescape PEACE - REST wycari (vicary n.
A synonymic index-catalogue of spiders of North, Central, and South America with all adjacent islands, Greenland, Bermuda, West Indies, Terra del Fuego, Galapagos, etc.
The ideal case is a pair of synonymic reversals like pat--tap, (B) the first to appear in Word Ways (74-172).
KIRBY, W.F., 1871.--A Synonymic Catalogue of diurnalLepidoptera: 289 pp.
Included are other deletions (curtailments, beshoulderments, castrations) that form synonymic pairs.
For each species a synonymic list is presented in which we mention the depositary institution of the primary types.
The second category of synonymic SITS do not have a common set of letters at their beginning.
The OSF online contains complete synonymic and taxonomic information, citations and references, images and sound recordings, maps, specimen collecting records and identification keys.
The selected standard allows us to use all the mentioned methods of resolving the choice between synonymic variants.
The relationships among the members of a demonstrative system can in fact be complementary or synonymic. After all, if their etymologies have been correctly identified, both apa- and asi+ are extensions of the same demonstrative stem.