This is the 2978th most frequent Russian word.
детский
No translation available
In this sentence, "детский" is used as an adjective describing "drawing," indicating that the drawing is something created by children.
Этот детский рисунок очень красивый.
This children's drawing is very beautiful.
Here, "детский" qualifies "theater," showing that the theater is intended for or associated with children.
Мы посетили детский театр на прошлых выходных.
We visited the children's theater last weekend.
Here, "детской" is in the form of genitive adjective, referring to the collection related to children and used with "мoегo брата" to denote possession.