This is the 4089th most frequent Turkish word.
hepsi
"All" or "all of them."
'Hepsi' here is used to refer collectively to a group of people as 'all of them'.
Hepsi geldiler.
They all arrived.
'Hepsi' refers to all items of the mentioned group, in this case, the candies.
Şekerlerin hepsi senin olabilir.
All of the candies can be yours.
'Hepsi' collectively refers to all subjects that were impressive.