In
grammar, a
conjunction (
abbreviated or ) is a
part of speech that connects words,
sentences,
phrases, or
clauses. A
discourse connective is a conjunction joining sentences. This definition may overlap with that of other parts of speech, so what constitutes a "conjunction" must be defined for each
language. In general, a conjunction is an invariable
grammatical particle, and it may or may not stand between the items in a conjunction