Definitions For Or

noun

• A room in a hospital equipped for the performance of surgical operations
• A state in northwestern United States on the Pacific

Noun

• A logical operator that returns a true value if one or both operands are true.
• Gold, represented in heraldic engraving by a white field sprinkled with small dots.

Abbreviation

• operating room

Conjunctive

• a. Used to indicate an alternative, usually only before the last term of a series: hot or cold; this, that, or the other.
• Before. Followed by ever or ere: "I doubt he will be dead or ere I come" (Shakespeare).

Preposition

• Before.