one's inherent nature

the main object of attention or affection (often used sarcastically) / the idol or other main object of worship at a temple

phon (unit of loudness)

adaptation

to adapt

(sometimes offensive) part of Japan adjacent to Sea of Japan

(dated) part of Japan adjacent to Pacific Ocean and Seto Inland Sea

saw-edged perch, Niphon spinosus

(organic chemistry) sulfone

(slang) the real thing; the genuine article; not a fake