specialism

US /ˈspeʃ.əl.ɪ.zəm/
UK /ˈspeʃ.əl.ɪ.zəm/
1.

kepakaran

a subject that someone knows a lot about:

:
•
His specialism is tax law.
:
specialspecializedspeciallyspecializespecialityspecial effectsspecial school