metier vs strong suit

metier and strong suit both are nouns.

Word	Noun	Adjective	Verb	Adverb
metier	Yes	No	No	No
strong suit	Yes	No	No	No

As nouns, metier and strong suit are synonyms defined as:

Other synonyms of metier include forte, long suit, speciality, specialty, strength, strong point.

metier (noun)	strong suit (noun)
an occupation for which you are especially well suited	an asset of special worth or utility
an asset of special worth or utility	a long suit including high cards