Meaning

• 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".

  "He might get cancer, or be hit by a bus, or God knows what."

• An operator denoting the disjunction of two propositions or truth values. There are two forms, the inclusive or and the exclusive or.

• Counts the elements before and after as two possibilities.

• Otherwise (a consequence of the condition that the previous is false).

  "It's raining! Come inside or you'll catch a cold!"

• Connects two equivalent names.

  "The country Myanmar, or Burma"