| BACKBREAKER | • backbreaker n. A strenuous and exhausting task, typically involving physical effort. • BACKBREAKER n. a strenuous task. |
| BALLBREAKER | • ballbreaker n. Alternative spelling of ball-breaker. • ball-breaker n. (US, idiomatic, vulgar) A person or task which is excessively demanding or punishing. • BALLBREAKER n. (offensive) an aggressively feminist woman. |
| BREAKER | • breaker n. Something that breaks. • breaker n. A machine for breaking rocks, or for breaking coal at the mines. • breaker n. The building in which such a machine is placed. |
| CODEBREAKER | • codebreaker n. A cryptanalyst, one who decodes messages without the key. • CODEBREAKER n. one who job it is to break codes. |
| DEALBREAKER | • dealbreaker n. Alternative spelling of deal breaker. • deal␣breaker n. (Idiomatic) An issue which causes a relationship (especially in business) to fail. • DEALBREAKER n. an issue that prevents an agreement from being reached. |
| GAMEBREAKER | • GAMEBREAKER n. a term used esp. in hockey to describe a player who can dominate and change a game single-handed. |
| GROUNDBREAKER | • groundbreaker n. First person to do, make or fight for something. A pioneer; a seminal person. • GROUNDBREAKER n. one that innovates. |
| HEARTBREAKER | • heartbreaker n. Someone, usually attractive, who flirts with or otherwise enamours a person, but does not reciprocate their love. • heartbreaker n. Something that causes sorrow, grief or extreme disappointment. • heartbreaker n. (Sports) A match which ends in defeat for a promising player or team. |
| HOUSEBREAKER | • housebreaker n. A criminal who breaks into and enters another’s house or premises with the intent of committing a crime. • house-breaker n. Alternative form of housebreaker. • house␣breaker n. Alternative form of housebreaker. |
| ICEBREAKER | • icebreaker n. A ship designed to break through ice so that it, or other ships coming behind, can navigate on frozen seas. • icebreaker n. (Figurative) A game, activity, humorous anecdote, etc., designed to relax a group of people to help… • icebreaker n. (Theater) A lively song and dance routine at the start of a musical. |
| JAILBREAKER | • jailbreaker n. One who breaks out of jail. • JAILBREAKER n. one who escapes from jail. |
| JAWBREAKER | • jawbreaker n. A large, extremely hard, boiled candy, typically spherical. • jawbreaker n. A long, hard-to-pronounce word. • jawbreaker n. (Boxing, slang) A hard blow to the side of the face. |
| LAWBREAKER | • lawbreaker n. One who breaks (violates) the law, a criminal. • law-breaker n. Alternative spelling of lawbreaker. • LAWBREAKER n. a person who violates the law. |
| MIDDLEBREAKER | • middlebreaker n. Synonym of middlebuster. • MIDDLEBREAKER n. a double-mould-board plough, aka lister. |
| SHOPBREAKER | • shopbreaker n. One who breaks into a shop with unlawful intent. • SHOPBREAKER n. a person who breaks into a shop. |
| STONEBREAKER | • stonebreaker n. A machine for crushing or hammering stone. • STONEBREAKER n. a person that breaks up stone; a machine used to break up stone. |
| STRIKEBREAKER | • strikebreaker n. A non-unionized worker hired to replace a striking union worker. • STRIKEBREAKER n. a person hired to replace a striking worker. |
| TIEBREAKER | • tiebreaker n. Something that is used to pick a winner from a tied situation. • tie-breaker n. Alternative spelling of tiebreaker. • tie␣breaker n. An electronic circuit that transfers a load to a different power source. |
| TRAILBREAKER | • trailbreaker n. A trailblazer. • TRAILBREAKER n. a trailblazer. |
| WINDBREAKER | • windbreaker n. A thin outer coat designed to resist wind chill and light rain. • wind␣breaker n. Alternative form of windbreaker. • WINDBREAKER n. (tradename) a type of windproof jacket with elasticated cuffs and waistband. |