1. a person who crosses something, especially a street or border
2. a person who opposes or contradicts someone
Usage: informal

Examples

• The crosser waited for the light to change before entering the intersection.
• Border crossers must present valid identification.
• She was known as a crosser who challenged every decision.
• The frequent crosser knew all the safe places to cross the busy highway.
• He became a crosser of his former allies after the disagreement.
• The crosser looked both ways before stepping into the street.