modulus vs whole number

modulus and whole number both are nouns.

Word	Noun	Adjective	Verb	Adverb
modulus	Yes	No	No	No
whole number	Yes	No	No	No

As nouns, whole number is a hypernym of modulus; that is, whole number is a word with a broader meaning than modulus:

modulus: an integer that can be divided without remainder into the difference between two other integers
whole number: any of the natural numbers (positive or negative) or zero

Other hypernyms of modulus include integer.

modulus (noun)	whole number (noun)
(physics) a coefficient that expresses how much of a specified property is possessed by a specified substance	any of the natural numbers (positive or negative) or zero
the absolute value of a complex number
an integer that can be divided without remainder into the difference between two other integers