"undress" in the noun sense
partial or complete nakedness
"a state of undress"
"undress" in the verb sense
1. undress, discase, uncase, unclothe, strip, strip down, disrobe, peel
"please don't undress in front of everybody!"
"She strips in front of strangers every night for a living"
2. strip, undress, divest, disinvest
remove (someone's or one's own) clothes
"The nurse quickly undressed the accident victim"
"She divested herself of her outdoor clothes"
"He disinvested himself of his garments"
Source: WordNet® (An amazing lexical database of English)
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