IPA: //dʒuˈdoʊkə//
KK: /dʒuˈdoʊkə/
A person who practices or is skilled in the Japanese martial art of judo.
The judoka won a gold medal in the international competition.
Judoka → The word originates from Japanese "judo" (meaning gentle way) and "-ka" (meaning practitioner or person). A judoka is a person who practices judo, which is a martial art emphasizing throws and holds.
Imagine someone who practices the 'gentle way' of fighting — that's what a judoka is.
No commonly confused words.