noun
Rare term for a rope or strap attached to an animal's neck to control it. More common words are 綱 (つな) or リード.
犬に首綱を付けて散歩する。
I walk the dog with a leash on its neck.
牛の首綱をしっかり握ってください。
Please hold the cow's tether firmly.
Compound of 首 (くび, 'neck') and 綱 (つな, 'rope'), with rendaku voicing つな → づな.