bathing vs Turkish bath

bathing and Turkish bath both are nouns.

Word	Noun	Adjective	Verb	Adverb
bathing	Yes	No	No	No
Turkish bath	Yes	No	No	No

As nouns, Turkish bath is a hyponym of bathing; that is, Turkish bath is a word with a more specific, narrower meaning than bathing:

bathing: the act of washing yourself (or another person)
Turkish bath: you sweat in a steam room before getting a rubdown and cold shower

Other hyponyms of bathing include shower, shower bath, bath, sponge bath, steam bath, vapor bath, vapour bath.

bathing (noun)	Turkish bath (noun)
immersing the body in water or sunshine	you sweat in a steam room before getting a rubdown and cold shower
the act of washing yourself (or another person)	a steam room where facilities are available for a bath followed by a shower and massage