glas
/ɡlaːs/
The Welsh word for blue is glas.
glas is used to describe something that is blue-coloured. It can also function as a noun meaning the colour blue.
Meaning: blue-coloured (adj)
Which one should you use?
In historical or more poetic contexts, glas can refer to a spectrum of colours that includes both blue and green.
Related words
How does it change in a sentence?
As an adjective, glas remains unchanged in gender or number when describing a noun.
How do you pronounce it?
/ɡlaːs/
Did you know?
- The root of glas is also connected to the word for 'arsenic', linking the colour to the chemical and elemental properties of certain minerals.
Examples in context
- Mae gan Barbie wallt melyn a llygaid glas.Barbie has blond hair and blue eyes.This sentence is useful for describing physical features using the form glas.Tatoeba #8118044 by SteCymru14, translation #4935937 by Hybrid
- Ga i fenthyg dy naddwr glas?May I borrow your blue sharpener?This sentence is useful for describing objects using the form glas.Tatoeba #10272424 by SabukHitam, translation #10272425 by SabukHitam
- Roedd Sami yn gwisgo crys glas.Sami was wearing a blue shirt.This sentence is useful for describing clothing using the form glas.Tatoeba #8732181 by HelygenLwyd, translation #7982033 by OsoHombre
- Mae'r awyr yn las heddiw.The sky is blue today.
- Mae gen i faner glas.I have a blue flag.
- Mae'r llyfr yn lliw glas.The book is a blue color.
Example conversation
Owain and Elowen are looking at an old painting.
- OwainEdrychwch ar y sêr glas yn y llun.Look at the blue stars in the picture.
- ElowenMae'r lliw glas yn edrych yn hyfryd.The blue colour looks lovely.
- OwainYdy'n lliw glas iawn, ydyn?It is a very blue colour, isn't it?
- ElowenYdy, mae'n glas iawn.Yes, it is very blue.
Sources
- Wiktionary, “blue” translations and entries glas, CC BY-SA 4.0, dump of 2026-09-26.
- Word origins: Wiktionary entries glas, CC BY-SA 4.0.
- Example sentences: Tatoeba CC BY 2.0 FR.