This is the 25th most frequent Russian word.
еще
"Yet," "still," "more," or "else," depending on context.
Here, 'еще' indicates an additional quantity.
У меня есть еще одно яблоко.
I have one more apple.
Here, 'еще' denotes an extension of time.
Он остался на вечеринке еще на час.
He stayed at the party for one more hour.
Here, 'еще' is used to indicate 'not yet' when paired with 'нет'.