1. the temporal property of two things happening at the same time

Similar word(s): coincidence, concurrence

Definition categories: attribute, simultaneity, simultaneousness

2. the state of being joined together

Similar word(s): colligation, conjugation, junction

Definition categories: state, unification, union

3. an uninflected function word that serves to conjoin words or phrases or clauses or sentences

Similar word(s): conjunctive, connective, continuative

Definition categories: communication

4. the grammatical relation between linguistic units (words or phrases or clauses) that are connected by a conjunction

Definition categories: link

5. (astronomy) apparent meeting or passing of two or more celestial bodies in the same degree of the zodiac

Similar word(s): alignment

Definition categories: event, encounter, meeting

6. something that joins or connects

Similar word(s): junction

Definition categories: man–made, connecter, connection, connective, connector, connexion