The English word for crab is crab, and the details are as follows:

crab

English

[kr?b]

American

[kr?b]

n. crab, crabmeat; pubic louse; ill-tempered person; [plant] sago, sago tree

vi. to catch crabs; to whine, to complain. Yawing

vt. to lose one's temper; to spoil; to make to yaw

Example sentences:

although

it

is

tasty,

crab

is

very

filling.

Crab, while tasty, tends to be filling.