(soccer) A linesman's flag that is equipped with a button that causes a receiver (typically worn by the referee) to buzz, thus warning him of the flag's use.

A version of American football where the players must remove a flag, worn around the waist, from the ball carrier instead of tackling.

Alternative spelling of chequered flag

plural of flag carrier

plural of flag day

plural of flag stop

(US) A train station at which trains stop only on request.

An award given to European beaches, based on cleanliness and water quality.

A European iris with bright yellow flowers, Iris pseudacorus.

(transitive) To mark for attention; to flag.