Indo-European Languages:
* Spanish: sombra
* Portuguese: sombra
* French: ombre
* Italian: ombra
* German: Schatten
* Russian: тень (ten')
* Polish: cień
* Czech: stín
* Hungarian: árnyék
* Greek: σκιά (skia)
* Latin: umbra
Other Languages:
* Chinese: 阴影 (yǐng shǐng)
* Japanese: 影 (kage)
* Korean: 그림자 (geurimja)
* Arabic: ظِلّ (ẓill)
* Hindi: छाया (chāyā)
* Bengali: ছায়া (chāyā)
* Vietnamese: bóng
* Thai: เงา (ngao)
* Turkish: gölge
Note: This is not an exhaustive list, and there are many other languages and dialects that have unique words for "shadow".
Let me know if you'd like to see the word for "shadow" in a specific language!