to close within bounds, limit or hold back from movement; "This holds the local until the express passengers change trains"; "About a dozen animals were held inside the stockade"; "The illegal immigrants were held at a detention center"; "The terrorists held the journalists for ransom"
keep under control; keep in check; "suppress a smile"; "Keep your temper"; "keep your cool"
add by mixing or blending on or attaching; "work in the butter and the dough will get the right consistency"; "In his speech, the presidential candidate worked in a lot of learned words"
march aggressively into another's territory by military force for the purposes of conquest and occupation; "Hitler invaded Poland on September 1, 1939"
penetrate or assault, in a harmful or injurious way; "The cancer had invaded her lungs"
occupy in large numbers or live on a host; "the Kudzu plant infests much of the South and is spreading to the North"
occur between other event or between certain points of time; "the war intervened between the birth of her two children"
get involved, so as to alter or hinder an action, or through force or threat of force; "Why did the U.S. not intervene earlier in WW II?"
be placed or located between other things or extend between spaces and events; "This interludes intervenes between the two movements"; "Eight days intervened"
shut out from view or get in the way so as to hide from sight; "The thick curtain blocked the action on the stage"; "The trees obstruct my view of the mountains"
hinder or prevent the progress or accomplishment of; "His brother blocked him at every turn"
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"