most
Definition of most:
part of speech: adverb
In the greatest or highest degree; for the greatest part: at most, or at the most, within the furthest limits; the utmost extent: to make the most of, to derive the greatest benefit or advantage from.
part of speech: noun
The greatest number, part, or quantity; the utmost value or extent- when used as a noun, the noun is usually understood.
part of speech: adjective
Superl. degree of much; consisting of the greatest number or quantity.