1. a ship with a reinforced bow to break up ice and keep channels open for navigation
Similar word(s): iceboat
Definition categories: man–made, ship
2. a beginning that relaxes a tense or formal atmosphere
- he told jokes as an icebreaker
Sentences with icebreaker as a noun:
- The new college hallmates were awkward with each other at first, but after a game of charades as an icebreaker, they were laughing like old friends.