debate vs decide

debate is a noun but decide is not a noun.

Word	Noun	Adjective	Verb	Adverb
debate	Yes	No	Yes	No
decide	No	No	Yes	No

debate (noun)	decide (noun)
the formal presentation of a stated proposition and the opposition to it (usually followed by a vote)
a discussion in which reasons are advanced for and against some proposition or proposal

debate (verb)	decide (verb)
argue with one another	reach, make, or come to a decision about something
discuss the pros and cons of an issue	bring to an end; settle conclusively
have an argument about something	cause to decide
think about carefully; weigh	influence or determine