Other hyponyms of specialiser include
enologist,
fermentologist,
oenologist,
attache,
canonist,
criminologist,
crystallographer,
nutritionist,
dietician,
dietitian,
educationalist,
educationist,
fingerprint expert,
fingerprint man,
fingerprint specialist,
Germanist,
designer,
graphic designer,
graphologist,
handwriting expert,
designer,
decorator,
house decorator,
interior decorator,
room decorator,
limnologist,
meteorologist,
oculist,
optometrist,
orientalist,
Teutonist,
arborist,
tree surgeon.