The behavior of a false flagger

present participle of black flag

(Britain, Ireland) A day on which a registered charity raises money, usually by selling small lapel flags. / (software) A day designated for changing to an incompatible system.

(topology) A simplicial complex where every collection of pairwise adjacent vertices spans a simplex.

(nautical, Royal Navy) The rank of a flag officer. / Any of several equivalent ranks in several other naval or other military organizations.

(military, nautical) A naval officer with the rank of rear admiral or above. Such officers are entitled to fly a personal flag, especially on the flagship.

The captain of a flagship in the Royal Navy.

plural of flag captain

plural of flag rank

(sports) Each of the flags that denotes the corner of the field of play.