specialty

noun pl. specialties

1. a special quality, feature, point, characteristic, etc.
2. a thing specialized in; special interest, field of study or professional work, etc.
3. the state of being special
4. an article or class of article characterized by special features, superior quality, novelty, etc.: a bakery whose specialty is pie
5. Law a special contract, obligation, agreement, etc. under seal, or a contract by deed

adjective

1. designating or of a store or stores that specialize in selling certain types of goods or to certain types of customers
2. of such goods or customers