thigh

UK: /ˈθaɪ/ US: /θaɪ/ ,(thī)

WordReference Random House Learner's Dictionary of American English © 2025

thigh /θaɪ/   n. [countable]

1. Anatomy the part of the lower limb in humans between the hip and the knee.
2. Zoology the corresponding part of the hind limb of other animals.

WordReference Random House Unabridged Dictionary of American English © 2025

thigh (thī),  n. 

1. Anatomy the part of the lower limb in humans between the hip and the knee.
2. Zoology the corresponding part of the hind limb of other animals;
   the femoral region.
3. Birds (in birds)
   • the true femoral region that is hidden by the skin or feathers of the body.
   • the segment below, containing the fibula and tibia.
4. Insects [Entomol.] the femur.

• bef. 900; Middle English thi, thigh(e), the(h), Old English thīoh, thēoh; cognate with Dutch dij, Old High German dioh, Old Norse thjō

Collins Concise English Dictionary © HarperCollins Publishers::

thigh / θaɪ/ noun

1. the part of the leg between the hip and the knee in humans
2. the corresponding part in other vertebrates and insects

Related adjective(s): femoral

Etymology: Old English thēh; related to Old Frisian thiāch, Old High German dioh thigh, Old Norse thjō buttock, Old Slavonic tyku fat