WordNet sense 1 (the temporal end; the concluding time):

close, finale, finis, finish, last, stopping point

WordNet sense 2 (event whose occurrence ends something):

ending

WordNet sense 3 (the proposition arrived at by logical reasoning (such as the proposition that must follow from the major and minor premises of a syllogism)):

ratiocination

WordNet sense 4 (the last section of a communication):

closing, end

WordNet sense 5 (a position or opinion or judgment reached after consideration):

decision, determination

WordNet sense 6 (the act of ending something):

termination