This is the 237th most frequent German word.
beide
"Beide" means "both" in English.
Here, 'beide' refers to 'both' as it is used to express that two subjects, children in this case, are included.
Beide Kinder spielen im Garten.
Both children are playing in the garden.
'Beide' emphasizes that two specific objects, the books, are under discussion and included.
Ich habe beide Bücher gelesen.
I have read both books.
In this sentence, 'beide' highlights the consideration of two distinct options or choices, indicating inclusivity.