What does 硬直 mean?
硬直 is a Japanese noun meaning “stiffness” in English. It is written as 硬直 in kanji, こうちょく in hiragana, and kouchoku in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
壁のまわりのバレリーナ達は筋肉が硬直しないように脚と足先を伸ばしています。
The ballerinas around the walls are stretching their legs and feet so their muscles will not become stiff.