deictic vs deixis

deictic and deixis both are nouns.

Word	Noun	Adjective	Verb	Adverb
deictic	Yes	Yes	No	No
deixis	Yes	No	No	No

deictic (noun)	deixis (noun)
a word specifying identity or spatial or temporal location from the perspective of a speaker or hearer in the context in which the communication occurs	the function of pointing or specifying from the perspective of a participant in an act of speech or writing; aspects of a communication whose interpretation depends on knowledge of the context in which the communication occurs

deictic (adjective)	deixis (adjective)
relating to or characteristic of a word whose reference depends on the circumstances of its use