How these statements are defined by a single word?

Question

How to describe these statements in one word?

1. It takes values from a given set of values
2. It is an algebraic expression where the only operation is multiplication.
3. It is the algebraic sum of monomials.
4. It remains invariant irrespective of time and place.
5. It is the sum of exponents of all variables present in a monomials.
6. It is the degree of the highest monomials in a polynomial.

Answer 1

As others have noted, it's not very clear what is being asked here. But here are my best guesses given the context:

1. is probably function
2. is probably monomial
3. is probably polynomial
4. is so vague that I can't attempt an answer.
5. is probably degree
6. confuses me. My best guess is degree but since that's used in the definition I would guess that is not what is being asked for. Maybe now that you know the definition for a monomial and a polynomial, you can remember the right word?

EDIT: In the comments, Hagen has some good alternate suggestions.