Labour  (us & austral. Labor) —n. 1 physical or mental work; exertion. 2 a workers, esp. Manual, considered as a political and economic force. B (labour) labour party. 3 process of childbirth. 4 particular task. —v. 1 work hard; exert oneself. 2 a elaborate needlessly (don't labour the point). B (as laboured adj.) Done with great effort; not spontaneous.