This is the 1871st most frequent Turkish word.
geleceği
"Geleceği" means "the future."
In this sentence, 'geleceği' is used in the accusative case, referring to the future as the object of waiting, showing a metaphorical use of temporal anticipation.
Geleceği beklerken daima umutlu olmamız gerekiyor.
We must always be hopeful while waiting for the future.
Here, 'geleceği' is in the possessive form, indicating whose future is being referred to, showing possession and relation.
O, çocuğunun geleceği için çok çalışıyor.
He is working hard for the future of his child.
In this case, 'geleceği' appears as an accusative-case object of thinking, emphasizing the focus of the subject's thoughts.