The letter 'w' is silent in the word 'whole'.
A five letter word for the whole amount is total.
Studying the faith
Parts.
A five letter word for parts of a wedding cake is 't-i-e-r-s'.
l, the whole word is large
items or parts typical at a whole group
parts of an hour = minutes
passel
Entire
set
The word could possibly be integer. That's the mathematical name for a whole number.