Definition of "Flag" :
noun: a conspicuously marked or shaped tail
noun: emblem usually consisting of a rectangular piece of cloth of distinctive design
noun: stratified stone that splits into pieces suitable as paving stones
noun: flagpole used to mark the position of the hole on a golf green
noun: 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.
noun: a rectangular piece of fabric used as a signalling device
noun: plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals
verb: become less intense
verb: provide with a flag
"Flag this file so that I can recognize it immediately."
verb: communicate or signal with a flag
verb: decorate with flags
"The building was flagged for the holiday."
verb: droop, sink, or settle from or as if from pressure or loss of tautness