The 3 letter word has to be Gal: A girl or young woman:
1. GARBLE: Reproduce (a message, sound, or transmission) in a confused and distorted way.
2. REGALE: Entertain or amuse (someone) with talk.
3. GARLIC: A strong-smelling pungent-tasting bulb, used as a flavouring in cooking and in herbal medicine.
4. CONGEAL: Become semi-solid, especially on cooling.