1 a final result; a termination.
2 a judgement reached by reasoning.
3 the summing-up of an argument, article, book, etc.
4 a settling; an arrangement (the conclusion of peace).
5 Logic a proposition that is reached from given premisses; the third and last part of a syllogism.
Phrases and idioms:
in conclusion lastly, to conclude. try conclusions with engage in a trial of skill etc. with.
Etymology: ME f. OF conclusion or L conclusio (as conclude)
Useful english dictionary. 2012.