Definitions

1. adjective

lying on one’s back, with the face upwards

“The patient was found supine on the hospital bed.”

2. noun

a person or thing that lies on one’s back, with the face upwards

“The supine figure on the beach caught the attention of the lifeguards.”

3. verb

to lie on one’s back, with the face upwards

“The children were told to supine in the sun and relax.”