Turn is used in expressions such as the turn of the century and the turn of the year to refer to a period of time when one century or year is ending and the next one is beginning.
Definition of turn verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
[usually singular] a time for action: It's my turn to speak, so let me finish.See in turn and out of turn below. an act of changing or reversing course or direction.
turn (third-person singular simple present turns, present participle turning, simple past and past participle turned or (obsolete) turnt) To make a non-linear physical movement.