Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun or

2 senses of or

Sense 1
Oregon, Beaver State, OR -- (a state in northwestern United States on the Pacific)
       INSTANCE OF=> American state -- (one of the 50 states of the United States)

Sense 2
operating room, OR, operating theater, operating theatre, surgery -- (a room in a hospital equipped for the performance of surgical operations; "great care is taken to keep the operating rooms aseptic")
       => hospital room -- (a room in a hospital for the care of patients)