mask vs disguise

mask and disguise both are nouns.

Word	Noun	Adjective	Verb	Adverb
mask	Yes	No	Yes	No
disguise	Yes	No	Yes	No

As nouns, disguise is a hypernym of mask; that is, disguise is a word with a broader meaning than mask:

mask: a covering to disguise or conceal the face
disguise: any attire that modifies the appearance in order to conceal the wearer's identity

Other hypernyms of mask include covering.

As verbs, disguise is a hypernym of mask; that is, disguise is a word with a broader meaning than mask:

Other hypernyms of mask include mask.

As verbs, mask and disguise are synonyms defined as:

mask (noun)	disguise (noun)
activity that tries to conceal something	the act of concealing the identity of something by modifying its appearance
a covering to disguise or conceal the face	any attire that modifies the appearance in order to conceal the wearer's identity
a protective covering worn over the face	an outward semblance that misrepresents the true nature of something
a party of guests wearing costumes and masks

mask (verb)	disguise (verb)
put a mask on or cover with a mask	make unrecognizable
shield from light
cover with a sauce
hide under a false appearance
make unrecognizable