Words the Bible translates as sanctify

English uses one word here. The Bible uses 2 words, and they do not mean the same thing. Each is listed with what it actually means, most frequent first.

hagiazōἁγιάζωto set someone or something apart from ordinary use and give it over to God, so that it becomes holy; also, to honor as holy what already is
qadashקָדַשׁto be set apart from ordinary use and brought into the sphere of the holy: to be holy, to make holy, to treat as holy

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Every English meaning beginning with S is on its letter page, and the whole index starts at Browse.