IPA: /ʌnˈdrɛs/
KK: /ʌnˈdrɛs/
The state of being without clothes or wearing very little clothing.
After a long day, she enjoyed the comfort of her undress at home.
To take off someone's clothes or to remove clothing from oneself.
She decided to undress before taking a shower.
Past: undressed
Past Participle: undressed
Undress → It is formed from "un-" (meaning not) and "dress" (from Old French *drecier*, meaning to arrange or put in order). The word "undress" means to remove clothing or to take off the arrangement of clothing.
Think of 'not' ('un-') wearing clothes that are 'arranged' ('dress') — that's why undress means to take off your clothes.