#1 conclude v. [reason, reason out] decide by reasoning; draw or come to a conclusion; "We reasoned that it was cheaper to rent than to buy a house". wn
#2 conclude v. bring to a close; "The committee concluded the meeting". wn
#3 conclude v. [resolve] reach a conclusion after a discussion or deliberation. wn
#4 conclude v. [close] come to a close; "The concert closed with a nocturne by Chopin". wn
#5 conclude v. reach agreement on; "They concluded an economic agreement"; "We concluded a cease-fire". wn
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