specialty
/ˈspɛʃəlti/
noun
Meaning
That in which one specializes; a chosen expertise or talent.
"They cook well overall, but their true specialty is pasta."
Particularity.
A particular or peculiar case.
An attribute or quality peculiar to a species.
A contract or obligation under seal; a contract by deed; a writing, under seal, given as security for a debt particularly specified.