going

unit of basal body temperature, 0 being 35.5 °C and 50 being 38 °C, used for fertility awareness

Initialism of オフィスレディー (ofisu redī, “office lady”) (female office worker responsible chiefly for menial, non-aspirational tasks)

eau de Cologne

roar (sound a big animal or a monster makes)

Odin

(Greek mythology) Clio

OL: an "office lady" (non-aspiring female office worker)

Alternative form of オーボエ (ōboe, “oboe”)

(fantasy) an ogre (brutish giant)