This is the 516th most frequent Czech word.
zpět
"Zpět" means "back" in English.
Here, 'zpět' means 'back' in the context of going back to a place where one has been.
Vrátím se zpět do kanceláře.
I will return back to the office.
Here, 'zpět' refers to the action of putting something back to its original position.
Položil knihu zpět na stůl.
He placed the book back on the table.
Here, 'zpět' signifies 'back' in terms of direction, relating to looking or facing back.