witch

(literary) they (about women or girls)

to use / to employ / to make use of, to apply / to spend

(colloquial) a girlfriend (a female partner in a romantic relationship)

(formal) Female third-person singular pronoun; she, her, girlfriend

The arts of magic, spellcraft, witchcraft, wizardry, sorcery. / Spellwork such as magical formulas, incantations, spells, etc.

to use one's head

(literary) they (about women or girls)

use one thing for many purposes / work someone hard

(Japanese fiction, fantasy) magic circle