|n.||1.||a ship with a reinforced bow and powerful engines designed to break up layers of ice on waterways and keep channels open for navigation.|
|2.||A remark or action intended to relieve tension or reduce formality when initiating conversation or beginning a speech; it is often a humorous or light remark.|
|Noun||1.||icebreaker - a ship with a reinforced bow to break up ice and keep channels open for navigation|
|2.||icebreaker - a beginning that relaxes a tense or formal atmosphere; "he told jokes as an icebreaker"|
|(security, jargon)||icebreaker - A program designed for cracking security on
See also: ICE.