any of the more or less continuous military expeditions in the 11th to 13th centuries when Christian powers of Europe tried to recapture the Holy Land from the Muslims
go on a crusade; fight a holy war
exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for; "The liberal party pushed for reforms"; "She is crusading for women's rights"; "The Dean is pushing for his favorite candidate"
maintain or assert; "He contended that Communism had no future"
be engaged in a fight; carry on a fight; "the tribesmen fought each other"; "Siblings are always fighting"; "Militant groups are contending for control of the country"
the property possessed by a line or surface that departs from the vertical; "the tower had a pronounced tilt"; "the ship developed a list to starboard"; "he walked with a heavy inclination to the right"
a slight but noticeable partiality; "the court's tilt toward conservative rulings"
an open clash between two opposing groups (or individuals); "the harder the conflict the more glorious the triumph"--Thomas Paine; "police tried to control the battle between the pro- and anti-abortion mobs"
an incompatibility of dates or events; "he noticed a conflict in the dates of the two meetings"
opposition between two simultaneous but incompatible feelings; "he was immobilized by conflict and indecision"
opposition in a work of drama or fiction between characters or forces (especially an opposition that motivates the development of the plot); "this form of conflict is essential to Mann's writing"
a state of opposition between persons or ideas or interests; "his conflict of interest made him ineligible for the post"; "a conflict of loyalties"
go against, as of rules and laws; "He ran afoul of the law"; "This behavior conflicts with our rules"