to suddenly become unconscious for a short time, usually falling down
Carol fainted because she hadn’t eaten in over a day.
Overcome by the intense heat, she began to feel lightheaded and eventually fainted.
The patient, unable to bear the sight of blood, started to feel dizzy and soon fainted in the doctor's office.
He hadn't eaten all day, and the combination of hunger and exhaustion caused him to faint during the long meeting.
The athlete pushed himself to the limit during the marathon and, depleted of energy, collapsed and fainted at the finish line.
