S: (v) preempt (acquire for oneself before others can do so)
S: (v) preempt, displace (take the place of or have precedence over) "live broadcast of the presidential debate preempts the regular news hour"; "discussion of the emergency situation will preempt the lecture by the professor"
S: (v) preempt (gain possession of by prior right or opportunity, especially so as to obtain the right to buy (land))
S: (v) preempt (make a preemptive bid in the game of bridge)