(comparative of `few' used with count nouns) quantifier meaning a smaller number of
"fewer birds came this year"; "the birds are fewer this year"; "fewer trains were late"
is similar to
(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"
domain usage
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'"
see also
a quantifier that can be used with count nouns and is often preceded by `a'; a small but indefinite number
"a few weeks ago"; "a few more wagons than usual"; "an invalid's pleasures are few and far between"; "few roses were still blooming"; "few women have led troops in battle"
see also
(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"