flag -- (emblem usually consisting of a rectangular piece of cloth of distinctive design)
masthead, flag -- (a listing printed in all issues of a newspaper or magazine (usually on the editorial page) that gives the name of the publication and the names of the editorial staff, etc.)
iris, flag, fleur-de-lis, sword lily -- (plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals)
flag, signal flag -- (a rectangular piece of fabric used as a signalling device)
pin, flag -- (flagpole used to mark the position of the hole on a golf green)
flag, flagstone -- (stratified stone that splits into pieces suitable as paving stones)
flag -- (a conspicuously marked or shaped tail)
Overview of verb flag
The verb flag has 5 senses
flag -- (communicate or signal with a flag)
flag -- (provide with a flag; "Flag this file so that I can recognize it immediately")
sag, droop, swag, flag -- (droop, sink, or settle from or as if from pressure or loss of tautness)
flag -- (decorate with flags; "the building was flagged for the holiday")