seashell

Short definition from Wiktionary

Noun

1. 1
   The empty shell of a marine mollusk.
2. 2
   The animal living inside a seashell.
3. 3
   A very light pink colour, like that of some seashells.

Adjective

1. 1
   Of a very light pink colour, like that of some seashells.

Verb

1. 1
   To collect seashells.