What does "strong suit" mean?

A field in which, or task at which, one is quite capable.

What is a synonym for "strong suit"?

Common synonyms include: fort, forte, long suit, metier, speciality, specialty.

noun, slang

noun, slang ·Moderate ·College level

Noun

1
A field in which, or task at which, one is quite capable. idiomatic, informal
"That area isn't my strong suit, but I can give it a shot."
2
an asset of special worth or utility wordnet
3
a long suit including high cards wordnet

"That area isn't my strong suit, but I can give it a shot."

Referring to card games in which players may hold more or less of a given suit.