This is the 142nd most frequent Czech word.
později
Later.
In this sentence, 'později' specifies a future time when the action of reading will occur.
Později si přečtu knihu.
I will read the book later.
Here, 'později' indicates a time in the future to which the action of postponing might refer.
Nikdy neodkládej práci na později.
Never postpone work for later.
In this context, 'později' contrasts two moments, emphasizing that dessert will be at a subsequent time.