/ Thesaurus / S Synonyms of spider crab Find synonyms for: Noun1. spider crab, crabusage: any of numerous crabs with very long legs and small triangular bodiesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language