resume vs re-start

resume is a noun but re-start is not a noun.

Word	Noun	Adjective	Verb	Adverb
resume	Yes	No	Yes	No
re-start	No	No	Yes	No

As verbs, resume and re-start are synonyms defined as:

Other synonyms of resume include restart.

resume (noun)	re-start (noun)
short descriptive summary (of events)
a summary of your academic and work history

resume (verb)	re-start (verb)
take up or begin anew	take up or begin anew
return to a previous location or condition	start an engine again, for example
give a summary (of)
assume anew