flag vs genus Iris

flag and genus Iris both are nouns.

Word	Noun	Adjective	Verb	Adverb
flag	Yes	No	Yes	No
genus Iris	Yes	No	No	No

flag (noun)	genus Iris (noun)
a conspicuously marked or shaped tail	large genus of perennials that develop from bulbs or rhizomes
emblem usually consisting of a rectangular piece of cloth of distinctive design
stratified stone that splits into pieces suitable as paving stones
flagpole used to mark the position of the hole on a golf green
a rectangular piece of fabric used as a signalling device
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.
plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals

flag (verb)	genus Iris (verb)
provide with a flag
become less intense
communicate or signal with a flag
decorate with flags
droop, sink, or settle from or as if from pressure or loss of tautness