Comparison (grammar)

Comparison, in grammar, is a property of adjectives and adverbs.
Adjectives and adverbs take three degrees, such as "kind", "kinder", "kindest". The central degree is comparative, since for example Bill is "kinder than" Joe. whereas the first and third degrees make no comparison. Likewise the use of "more" as in "more quickly" is comparative, where "quick" and "quickest" are not.