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preexilian
preexisting condition
prefab
prefabricate
preface
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prefatory
prefect
prefecture
prefer
preferable
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preempt

pre·empt [ pree émpt ]


verb  (past and past participle pre·empt·ed, present participle pre·empt·ing, 3rd person present singular pre·empts)
Definition:
 
1. transitive verb act to prevent something: to do something that makes it pointless or impossible for somebody else to do what he or she intended

2. transitive verb occupy something: to occupy public land in order to have the right to buy it later

3. transitive verb replace something: to take the place of something, especially of something less important

4. intransitive verb bridge make bid that blocks others: in bridge, to make a bid so high that it discourages further bidding



noun  (plural pre·empts)
Definition:
 
bridge preemptive bid: in bridge, a preemptive bid

[Mid-19th century. Back-formation <preemption]

pre·emp·tor noun
pre·emp·to·ry adjective
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