The captain of a flagship in the Royal Navy.

(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.

plural of flag rank

plural of flag captain

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

present participle of flag down

(figuratively) Registration of a ship in a country chosen for its low taxes, permissive regulations, and so on.

Alternative spelling of flagpole

plural of flag pole, an alternative spelling of flagpoles