noun, noun which may take the genitive case particle 'no'
one layer; single layer
Describes something consisting of a single layer, not doubled or folded. Often used as a noun or with の to modify another noun.
この布は一重で薄い。
This cloth is a single layer and thin.
一重のカーテンでは光が漏れる。
With a single-layer curtain, light leaks through.
noun, noun which may take the genitive case particle 'no'
monopetalous
Botanical term for a flower with petals fused into a single structure. Rare outside technical contexts.
See also: 単弁
この花は一重で、花びらが一つにつながっている。
This flower is monopetalous, with petals fused into one.
noun
Only when written 単
Abbreviation of 単衣 (ひとえぎぬ). Refers to a kimono without a lining, typically worn in summer. Usually written as 単.
See also: 単物 · 単衣 (ひとえぎぬ)
夏は単の着物が涼しい。
In summer, an unlined kimono is cool.
noun
single-edged eyelid; eyelid without a crease
Abbreviation of 一重まぶた. Refers to an upper eyelid that lacks a visible crease, common in East Asian eyes. Often used in beauty and cosmetic contexts.
See also: 一重まぶた
彼女は一重を二重にするメイクを研究している。
She is researching makeup to turn single-edged eyelids into double-edged ones.
二重 means 'double layer' or 'double-edged eyelid', the opposite of 一重 in both layering and eyelid contexts.
単衣 is the full term for an unlined kimono; 一重 (or 単) is its common abbreviation.
一重まぶた is the full term for a single-edged eyelid; 一重 is the abbreviated form used in casual conversation.
Compound of 一 (ひと, 'one') and 重 (え, 'layer'). The reading ひとえ is a native Japanese combination. The kanji 単 is used for the unlined kimono sense by extension of its meaning 'simple' or 'single'.