noun.
A piece of protectiveclothing that is meant to be inserted in the ear canal to protect the wearer's hearing from loud noises or the intrusion of water.
verb.
To fit with earplugs.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
an earphone that is inserted into the ear canal
noun.
a plug of cotton, wax, or rubber that is fitted into the ear canal for protection against the entry of water or loud noise
Word Usage
"How about an earplug hack: filters from (unused) cigarettes? colorebel"