1.
heel (of foot)
The back part of the human foot below the ankle.
2.
heel (of shoe)
The raised part at the back of a shoe.
踵 refers to both the body part and the shoe part.
Writing
This word is very frequently written as かかと due to the kanji's complexity.
Common patterns
RELATED WORDS (other parts of the foot):
Watch out
In the set phrases 踵を返す (to turn on one's heel, turn back) and 踵を接して (in close succession, literally "heels touching"), 踵 is read きびす, not かかと.
Related Words
Related:
踝 (ankle (bone))
Related:
土踏まず (arch of the foot)
Related:
靴底 (sole of a shoe)
Compare:
足裏 (sole of the foot)
Compare:
ヒール (heel (of a shoe))
Related:
足首 (ankle)
Related:
爪先 (toe/tiptoe)