crab — A crab is a sea creature with a flat round body covered by a shell, and five pairs of legs with large claws on the front pair. Crabs usually move sideways.
crabb — George, 1778–1851, English author and philologist.
crabbe — George. 1754–1832, English narrative poet, noted for his depiction of impoverished rural life in The Village (1783) and The Borough (1810)
dab — DAB is the transmission of digital stereo over conventional radio channels. DAB is an abbreviation for 'digital audio broadcasting'.
drab — dull; cheerless; lacking in spirit, brightness, etc.
rock crab — any of several crabs that live along rocky beaches, especially those of the genus Cancer, as C. irroratus, of the eastern coast of North America, having the rear legs modified for running.
sand dab — any of several flatfishes used for food, especially of the genus Citharichthys, inhabiting waters along the Pacific coast of North America.
stone crab — an edible crab, Menippe mercenaria, of rocky shores from the southern U.S. to Mexico and certain areas of the Caribbean, prized for the meat of its claws.
Three-syllable rhymes
fiddler crab — any small, burrowing crab of the genus Uca, characterized by one greatly enlarged claw in the male.
hermit crab — any of numerous crabs, especially of the genera Pagurus and Eupagurus, that protect their soft uncovered abdomen by occupying the castoff shell of a univalve mollusk.
jonah crab — a large, red, deepwater crab, Cancer borealis, of the east coast of North America.
calico crab — a brightly speckled swimming crab, Ovalipes ocellatus, of sandy beaches along the Atlantic coast of the U.S.
horseshoe crab — a large marine arthropod, Limulus polyphemus, of shallow coastal waters of eastern North America and eastern Asia, having both compound and simple eyes, book gills, a stiff tail, and a brown carapace curved like a horseshoe: a living fossil related to the woodlouse.