uplift vs upthrust

uplift and upthrust both are nouns.

Word	Noun	Adjective	Verb	Adverb
uplift	Yes	No	Yes	No
upthrust	Yes	No	No	No

As nouns, uplift and upthrust are synonyms defined as:

uplift and upthrust: (geology) a rise of land to a higher elevation (as in the process of mountain building)

Other synonyms of uplift include upheaval, upthrow.

uplift (noun)	upthrust (noun)
a brassiere that lifts and supports the breasts	(geology) a rise of land to a higher elevation (as in the process of mountain building)
(geology) a rise of land to a higher elevation (as in the process of mountain building)

uplift (verb)	upthrust (verb)
fill with high spirits; fill with optimism
lift up or elevate
lift up from the earth, as by geologic forces