OR

conjunction

1. 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".
2. An operator denoting the disjunction of two propositions or truth values. There are two forms, the inclusive or and the exclusive or.
3. Counts the elements before and after as two possibilities.