prevent from doing something or being in a certain state; "We must prevent the cancer from spreading"; "His snoring kept me from falling asleep"; "Keep the child from eating the marbles"
keep from happening or arising; make impossible; "My sense of tact forbids an honest answer"; "Your role in the projects precludes your involvement in the competitive project"
prevent from being included or considered or accepted; "The bad results were excluded from the report"; "Leave off the top piece"
prevent from entering; shut out; "The trees were shutting out all sunlight"; "This policy excludes people who have a criminal record from entering the country"
lack or fail to include; "The cost for the trip excludes food and beverages"
the power or right to prohibit or reject a proposed or intended act (especially the power of a chief executive to reject a bill passed by the legislature)
vote against; refuse to endorse; refuse to assent; "The President vetoed the bill"