clincher vs decisive factor

clincher and decisive factor both are nouns.

Word	Noun	Adjective	Verb	Adverb
clincher	Yes	No	No	No
decisive factor	Yes	No	No	No

As nouns, clincher and decisive factor are synonyms defined as:

clincher and decisive factor: a point or fact or remark that settles something conclusively

clincher (noun)	decisive factor (noun)
a tool used to clinch nails or bolts or rivets	a point or fact or remark that settles something conclusively
a point or fact or remark that settles something conclusively
an argument that is conclusive