W: (n) beginning [Opposed to: end] (the time at which something is supposed to begin) "they got an early start"; "she knew from the get-go that he was the man for her"
W: (n) middle [Opposed to: end] (time between the beginning and the end of a temporal period) "the middle of the war"; "rain during the middle of April"
S: (n) ending, conclusion, finish (event whose occurrence ends something) "his death marked the ending of an era"; "when these final episodes are broadcast it will be the finish of the show"
S: (v) end, stop, finish, terminate, cease (have an end, in a temporal, spatial, or quantitative sense; either spatial or metaphorical) "the bronchioles terminate in a capillary bed"; "Your rights stop where you infringe upon the rights of other"; "My property ends by the bushes"; "The symphony ends in a pianissimo"
S: (v) end, terminate (bring to an end or halt) "She ended their friendship when she found out that he had once been convicted of a crime"; "The attack on Poland terminated the relatively peaceful period after WW I"
S: (v) end, terminate (be the end of; be the last or concluding part of) "This sad scene ended the movie"