less -
(comparative of `little' usually used with mass nouns) a quantifier meaning not as great in amount or degree; "of less importance"; "less time to spend with the family"; "a shower uses less water"; "less than three years old"
slight,
little small in a way that arouses feelings (of tenderness or its opposite depending on the context); "a nice little job"; "bless your little heart"; "my dear little mother"; "a sweet little deal"; "I'm tired of your petty little schemes"; "filthy little tricks"; "what a nasty little situation"
comparative,
comparative degree the comparative form of an adjective or adverb; "`faster' is the comparative of the adjective `fast'"; "`less famous' is the comparative degree of the adjective `famous'"; "`more surely' is the comparative of the adverb `surely'"
less -
(nonstandard in some uses but often idiomatic with measure phrases) fewer; "less than three weeks"; "no less than 50 people attended"; "in 25 words or less"
less -
(usually preceded by `no') lower in quality; "no less than perfect"
Adverb
less -
used to form the comparative of some adjectives and adverbs; "less interesting"; "less expensive"; "less quickly"
