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Synonyms for Twin (same or very similar meaning)

WordNet sense 1 ((astrology) a person who is born while the sun is in Gemini):

WordNet sense 2 (a waterfall in the Snake River in southern Idaho):
Twin Falls

WordNet sense 3 (a duplicate copy):
counterpart, similitude

WordNet sense 4 (duplicate or match):
duplicate, parallel, duplicate

WordNet sense 5 (very similar):

WordNet sense 6 (being two identical):
matching, twinned

WordNet sense 7 (going well together; possessing harmonizing qualities):

WordNet sense 8 (bring two objects, ideas, or people together):
couple, match, mate, pair, mate

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