specialty

noun6

1. •
   That in which one specializes; a chosen expertise or talent; bailiwick.

   • They cook well overall, but their true specialty is pasta.
   • The doctor ordered a consultation with another doctor in a different specialty.
2. •
   A product that originates in and is characteristic of a place.
3. •
   A contract or obligation under seal; a contract by deed; a writing, under seal, given as security for a debt particularly specified.

   • Let specialties be therefore drawne betweene vs, That couenants may be kept on either hand. — 1590
4. •
   A particular or peculiar case.
5. •
   An attribute or quality peculiar to a species.
6. •
   (no longer used) Particularity.

   • The specialty of rule hath been neglected: And, look, how many Grecian tents do stand Hollow upon this plain, so many hollow factions. — 1602