This is the 17080th most frequent Russian word.
спрятали
"Спрятали" means "hid" or "hidden."
In this sentence, 'спрятали' (hid) is used in the past tense to describe an action of concealing an object (the toy).
Они спрятали игрушку в коробке.
They hid the toy in the box.
Here, 'спрятали' is employed to indicate a completed action of hiding in the past, prior to another past event.
Когда мы пришли, они уже спрятали письмо.
When we arrived, they had already hidden the letter.
This sentence uses 'спрятали' to express an action performed by 'you' in the past to conceal something effectively.