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defoliate
deforce
deforest
deform
deformalize
deformation
deformity
defrag
defragment
defraud
defray
defrizz
defrock
defrost
defroster
deft
defunct
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defragment

de·frag·ment [ dee frágmənt ] (past and past participle de·frag·ment·ed, present participle de·frag·ment·ing, 3rd person present singular de·frag·ments)


transitive verb 
Definition:
 
reorganize storage space on hard disk: to reorganize the storage space on a hard disk and optimize its performance by consolidating related files

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