ガラス

がらす

noun

glass

building

1. glass

A hard, transparent material made from sand; also refers to glass objects like windows.

ガラスは危(あぶ)ない。

Glass is dangerous.

窓(まど)のガラスがきれいだ。

The window glass is clean.

ガラスのコップを割(わ)ってしまった。

I accidentally broke a glass cup.

ガラスは壊(こわ)れやすいので、子(こ)どもの近(ちか)くに置(お)かないでください。

Glass breaks easily, so please don't leave it near children.

子(こ)どもがボールを投(な)げて窓(まど)ガラスを壊(こわ)してしまったので、新(あたら)しいガラスを入(い)れなければならない。

A child threw a ball and broke the window glass, so we have to put in new glass.

ガラス is a loanword from Portuguese/Dutch 'glas,' referring to the transparent material glass or objects made of glass. It's written in katakana because of its foreign origin.

Compounds

窓(まど)ガラス: window glass/pane
ガラス戸(ど): glass door
ガラス窓(まど): glass window
ガラス張(ば)り: glass-covered, glass-walled
ガラスの器(うつわ): glassware
ガラス細工(ざいく): glass crafts
ガラス瓶(びん): glass bottle

Common expressions

ガラスを割(わ)る: to break glass
ガラスの破片(はへん): glass fragments/shards
ガラスのように壊(こわ)れやすい: fragile like glass

Related words

グラス: drinking glass (also from 'glass')
コップ: cup (from Dutch 'kop')
鏡(かがみ): mirror

Note: ガラス refers to the material, while グラス typically refers to drinking glasses.

Related Words

Related: グラス (drinking glass)

Related: コップ (cup)

Related: 鏡(かがみ) (mirror)

basic

Added 2026.1.9 21:24 · Revised 2026.9.2 13:01

01500/01777_garasu