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decriminalize
decry
decrypt
decubitus
decubitus ulcer
decumbent
decurion
decurrent
decury
decussate
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dedupe

de·dupe [ dee dp ] (past and past participle de·duped, present participle de·dup·ing, 3rd person present singular de·dupes)


transitive verb 
Definition:
 
rid a list of duplicates: to remove duplicates from a list, especially a mailing list ( informal )

[Late 20th century. <de- + dupe, shortening of duplicate]
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