blow vs blast

blow and blast both are nouns.

Word	Noun	Adjective	Verb	Adverb
blow	Yes	No	Yes	No
blast	Yes	No	Yes	No

As nouns, blow and blast are synonyms defined as:

Other synonyms of blow include gust.

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

blow (noun)	blast (noun)
a powerful stroke with the fist or a weapon	a very long fly ball
forceful exhalation through the nose or mouth	intense adverse criticism
street names for cocaine	an explosion (as of dynamite)
an impact (as from a collision)	a sudden very loud noise
an unpleasant or disappointing surprise	a highly pleasurable or exciting experience
an unfortunate happening that hinders or impedes; something that is thwarting or frustrating	a strong current of air
a strong current of air

blow (verb)	blast (verb)
exhale hard	shatter as if by explosion
free of obstruction by blowing air through	shrivel or wither or mature imperfectly
melt, break, or become otherwise unusable	criticize harshly or violently
burst suddenly	use explosives on
shape by blowing	fire a shot; release
show off	hit with great force
cause to be revealed and jeopardized	create by using explosives
allow to regain its breath	make with or as if with an explosion
deposit eggs (of insects)	apply a draft or strong wind to to
be in motion due to some air or water current	make a strident sound
cause to move by means of an air current
leave; informal or rude
cause air to go in, on, or through
spout moist air from the blowhole
play or sound a wind instrument
make a sound as if blown
sound by having air expelled through a tube
provide sexual gratification through oral stimulation
spend lavishly or wastefully on
spend thoughtlessly; throw away
make a mess of, destroy or ruin
be inadequate or objectionable
be blowing or storming