(Chinese medicine) the area or point between the kidneys considered the source of vital energy; the right kidney; acupuncture point GV-4 on the lower back; also used for the 睛明 jīng​míng point near the eyes

(fortune-telling) the temples on the sides of the head near the ears

(literary) the eyes; a figurative term for the organ of sight

a person's most critical or vulnerable point; Achilles' heel