breathe vs expire

breathe and expire both are verbs.

Word	Noun	Adjective	Verb	Adverb
breathe	No	No	Yes	No
expire	No	No	Yes	No

As verbs, expire is a hyponym of breathe; that is, expire is a word with a more specific, narrower meaning than breathe:

breathe (verb)	expire (verb)
draw air into, and expel out of, the lungs	expel air
expel (gases or odors)	pass from physical life and lose all bodily attributes and functions necessary to sustain life
reach full flavor by absorbing air and being let to stand after having been uncorked	lose validity
take a short break from one's activities in order to relax
utter or tell
manifest or evince
impart as if by breathing
be alive
allow the passage of air through