How do you say oxygen in Hindi?
— आक्सीजन (ōshajana); आक्सीजन

Generic synonyms for oxygen in Hindi
gasगैस (gais)
Substance meronyms for oxygen in Hindi
airहवा (f) (havā); वायु (vāyu)
waterपानी (m) (pānī); जल (m) (jal); आप (m) (āp); आब (āb)