This is the 12517th most frequent Russian word.
коллаж
Collage: A composition made by combining various materials, such as photos, fabrics, or paper, into a unified artwork.
Here, 'коллаж' is used in plural form to mean the general artistic technique of collage-making.
На уроке искусства мы обучались технике работы с коллажами.
In the art class, we learned the technique of working with collages.
Here, 'коллаж' is used to refer to an artistic composition made by assembling different pictures.
Я сделал коллаж из семейных фотографий.
I made a collage from family photos.
In this sentence, 'коллаж' denotes a thematic collection of visual elements.