顎紐(あごひも)

あごひも
noun
chin strap (of a hat, helmet, or mask)
clothing
1. chin strap (of a hat, helmet, or mask)
A strap or cord attached to a hat, helmet, kasa, mask, or similar headgear that passes under the chin to keep the item securely on the wearer's head. Found on construction helmets, military helmets, riding helmets, traditional sedge hats (菅笠(すげがさ)), kindergarten hats, and elementary-school yellow safety hats.
顎紐(あごひも)を締(し)める。
Tighten the chin strap.
ヘルメットの顎紐(あごひも)が緩(ゆる)んでいる。
The chin strap of the helmet is loose.
風(かぜ)が強(つよ)い日(ひ)は、帽子(ぼうし)の顎紐(あごひも)をしっかり掛(か)けておこう。
On a windy day, make sure to fasten your hat's chin strap securely.
自転車(じてんしゃ)用(よう)ヘルメットは、顎紐(あごひも)を正(ただ)しく装着(そうちゃく)しないと安全(あんぜん)性能(せいのう)を十分(じゅうぶん)発揮(はっき)できない。
Bicycle helmets cannot deliver their full safety performance unless the chin strap is properly fastened.

Composed of 顎(あご) (chin; jaw) and 紐(ひも) (string; cord; strap). The simple, transparent compound is the standard everyday word; there is no commonly used loanword equivalent in Japanese.

Usage

A general everyday term that covers any chin-securing strap, regardless of material — leather, woven nylon, plastic, or fabric. Frequently appears in contexts of safety equipment (construction sites, traffic safety), school uniforms (the yellow 通学帽(つうがくぼう) worn by elementary-school children), traditional dress (festival hats), and outdoor sports. The same item is sometimes called あごひも, written entirely in hiragana on consumer products.

Common collocations

Similar words

  • 紐(ひも): string; cord — the broader category of which 顎紐(あごひも) is one type
  • 耳掛(みみか)け: ear loop — used for masks, hooks over the ears rather than under the chin
  • 鉢巻(はちまき): headband — wraps around the head, not under the chin
  • 帽子(ぼうし): hat — the typical item that requires a 顎紐(あごひも)

Related Words

Compare: 鉢巻(はちまき) (headband)
Compare: 帽子(ぼうし) (hat)
general
Added 2026.4.14 5:22 · Revised 2026.9.2 13:02
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