The term baulk-line is commonly used in billiards and refers to a line on the table that separates the area where the balls are placed at the beginning of a game. However, there are several other synonyms for this term, including "head-string," "foot-string," and "string line." These terms are used interchangeably with baulk-line, depending on the specific type of billiards game being played. Regardless of the term used, the line serves an essential purpose, helping players to maintain proper ball placement and positioning during gameplay. Whether you're a seasoned billiards pro or just learning the ropes, understanding these synonyms can help you better understand the game and communicate with other players.