foot vs pyrrhic

foot and pyrrhic both are nouns.

Word	Noun	Adjective	Verb	Adverb
foot	Yes	No	Yes	No
pyrrhic	Yes	Yes	No	No

As nouns, pyrrhic is a hyponym of foot; that is, pyrrhic is a word with a more specific, narrower meaning than foot:

foot: (prosody) a group of 2 or 3 syllables forming the basic unit of poetic rhythm
pyrrhic: a metrical unit with unstressed-unstressed syllables

Other hyponyms of foot include dactyl, iamb, iambus, anapaest, anapest, amphibrach, trochee, spondee, dibrach, iambic trimeter.

foot (noun)	pyrrhic (noun)
travel by walking	an ancient Greek dance imitating the motions of warfare
any of various organs of locomotion or attachment in invertebrates	a metrical unit with unstressed-unstressed syllables
the pedal extremity of vertebrates other than human beings
lowest support of a structure
a support resembling a pedal extremity
the part of the leg of a human being below the ankle joint
(prosody) a group of 2 or 3 syllables forming the basic unit of poetic rhythm
an army unit consisting of soldiers who fight on foot
the lower part of anything
a member of a surveillance team who works on foot or rides as a passenger
a linear unit of length equal to 12 inches or a third of a yard

foot (adjective)	pyrrhic (adjective)
	of or relating to or resembling Pyrrhus or his exploits (especially his sustaining staggering losses in order to defeat the Romans)
	of or relating to or containing a metrical foot of two unstressed syllables
	of or relating to a war dance of ancient Greece