fog vs mist

fog and mist both are nouns.

Word	Noun	Adjective	Verb	Adverb
fog	Yes	No	Yes	No
mist	Yes	No	Yes	No

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

Other hyponyms of fog include fogbank, ice fog, pogonip, pea-souper, pea soup.

As verbs, fog and mist are synonyms defined as:

Other synonyms of fog include becloud, befog, cloud, haze over, obnubilate, obscure.

fog (noun)	mist (noun)
confusion characterized by lack of clarity	a thin fog with condensation near the ground
droplets of water vapor suspended in the air near the ground
an atmosphere in which visibility is reduced because of a cloud of some substance

fog (verb)	mist (verb)
make less visible or unclear	become covered with mist
	spray finely or cover with mist
	make less visible or unclear