The Collaborative International Dictionary of English v.0.48:
Shell \Shell\, v. t. [imp. & p. p. Shelled; p. pr. & vb. n.
Shelling.]
1. To strip or break off the shell of; to take out of the
shell, pod, etc.; as, to shell nuts or pease; to shell
oysters.
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2. To separate the kernels of (an ear of Indian corn, wheat,
oats, etc.) from the cob, ear, or husk.
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3. To throw shells or bombs upon or into; to bombard; as, to
shell a town.
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To shell out, to distribute freely; to bring out or pay, as
money. [Colloq.]
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