Synonyms for shell

noun

1. A shell-like cover or structure

   husk, crust, nut, pod, case, pericarp, scale, shard, theca, integument, eggshell, carapace, plastron.

2. An explosive projectile

   bullet, projectile, casing, cartridge; see bullet. see also weapon 1.

   Varieties include: armor-piercing, blind-loaded, high-explosive, anti-personnel, artillery shell, cannon shell, common, deck-piercing, torpedo, shrapnel, antiaircraft;

3. A crustaceous covering

   carapace, sea shell, test. see also seashell.

   Varieties include: tortoise, crustacean, conch, snail;

verb