Copyright © 2026 Kotomora. All Rights Reserved.
いが Japanese meaning | Kotomora
Meanings 1
noun
burr ; bur ; cupule ; case
usually written using kana alone botany
Refers to the spiky husk or cup-like covering of chestnuts, acorns, and similar nuts. Botanical term; in everyday language, いが is most familiar for chestnut burrs.
Written forms いが Usage 100%
Usually written in kana; the kanji forms 毬 and 梂 are rare and mainly botanical.
毬いが
Rare kanji spelling; may be encountered in botanical contexts.
梂いが
Very rare kanji variant; not recommended for general use.
り
出だ
す
。
Remove the burr and take out the nut inside.
Similar words 栗くり 栗 is the chestnut tree or its edible nut, while いが is the spiky outer husk that encloses the nut.
殻から 殻 is a general word for shell or husk; いが specifically refers to the prickly burr of chestnuts and similar nuts.
Etymology The origin is uncertain, but it may be related to the spiky or prickly appearance. The kanji 毬 and 梂 are rare and mainly used in botanical contexts.