How to say "glass" in Japanese

• ガラスJLPT N4approx.Common
  nounCovers glass as a material and window panes, not drinking vessels. Use it when talking about what something is made of, such as a broken window or a glass door.
  テーブルの上うえにガラスのコップがある。↗

  There is a glass on the table.
• グラスJLPT N3approx.Common
  nounRefers specifically to a drinking glass, typically the stemmed or tumbler-style kind used for beverages. This is the natural word when ordering or serving a drink in a glass.
  彼女かのじょはグラスにワインを満みたした。↗

  She filled the glass with wine.
• コップCommon
  nounAlso a drinking vessel, but suggests an everyday tumbler or cup rather than elegant glassware. Common for water cups at home, in schools, or at the doctor's office.
  ガラスのコップを流ながしにおこうとしたら手てが滑すべって、ガシャッと割われた。↗

  When I tried to set the glass down in the sink my hand slipped and it shattered to pieces.
• 水飲みみずのみCommon
  nounMeans a container for drinking water, glossed as 'glass' or 'tumbler'. It is really about the water-drinking container, so it is seldom the word you want for 'glass' in general.

Use 「ガラス」 for the material or window panes, 「グラス」 for a drinking glass, 「コップ」 for everyday cups and tumblers, and 「水飲み」 mainly for a water-drinking container rather than 'glass' itself.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• ガラスglass
• グラスglass (drinking vessel)
• コップglass (drinking vessel)
• 硝子しょうしglass
• ギヤマンglass
• 水飲みみずのみ(water) drinking container
• 玻璃はりglass
• 瑠璃るりglass