church A1

/ˈt͡ʃɝt͡ʃ/ a service conducted in a house of worship

jail B1

/d͡ʒeɪl/ a place used to detain persons who are in the lawful custody of the government

cave B1

/keɪv/ to hollow out as if making a cave or opening

cavity C1

/ˈkæv.ɪt.i/ in anatomy, a natural hollow or sinus within the body