Noun
a ship with a reinforced bow to break up ice and keep channels open for navigation
a beginning that relaxes a tense or formal atmosphere
Source: WordNetLuisa knew how to use her own ignorance as an icebreaker in conversations. Izzy was full of people who were skewed toward the Asperger's end of the social spectrum, and there was no better way to get them to start talking than to ask them a technical question. Neal Stephenson
Nothing is a better icebreaker than a great joke. Dane Cook
he told jokes as an icebreaker Source: Internet
Almirante Irizar was an icebreaker, Bahia Paraiso was an Antarctic supply transport and Puerto Deseado was a survey ship. Source: Internet
Case enters cyberspace to guide the icebreaker to penetrate its target; Lady 3Jane is induced to give up her password, and the lock is opened. Source: Internet
American icebreaker capability has been declining as other countries rev up. Source: Internet