(logic) Inclusive or; either one proposition or the other is true or both. / (computer science) A lexical symbol to implement inclusive or in a computer language.

(logic) The binary operator inclusive or, true if one at least one of two inputs is true. In infix notation.

(healthcare, countable) Initialism of operating room. / (sciences, uncountable) Initialism of operations research. / (sports, countable) Initialism of Olympic Record.

Oregon, a state of the United States of America. / Orissa, a state of India.

(countable) An evergreen tree of the genus Citrus such as Citrus sinensis. / (countable) The fruit of the orange tree; a citrus fruit with a slightly sour flavour.

Having the colour of the fruit of an orange tree; yellowred; reddish-yellow.

(transitive) To color orange. / (intransitive) To become orange.

(grammar) A word that expresses the relative position of an item in a sequence. / (arithmetic) A natural number used to denote position in a sequence.

Connects at least two alternative words, phrases, clauses, sentences, etc. each of which could make a passage true. In English, this is the "inclusive or." The "exclusive or" is formed by "either[…]or".

(logic, electronics) Alternative form of OR