specific A2

/spɪˈsɪf.ɪk/ Clear and exact; relating to one particular thing rather than things in general.

spice B1

/spaɪs/ A strong-tasting or aromatic part of a plant, usually dried, used to flavor food.

subspecialist C2+

/ˌsʌbˈspɛʃəlɪst/ a specialist who focuses on a narrow branch within a larger field

subspecialty C2+

/ˌsʌbˈspɛʃəlti/ a narrow branch of expertise within a broader specialty