dash cultural definition

A punctuation mark (—) used to indicate a sudden break in thought, to set off parenthetical material, or to take the place of such expressions as that is and namely: “He's running for reelection — if he lives until then”; “Very few people in this class — three, to be exact — have completed their projects”; “She joined the chorus for only one reason — she loves to sing.” In the last example, where the parenthetical material comes at the end of the sentence rather than in the middle, a colon could be used instead of the dash.