mieux
better (comparative of 'bien')
preferably / it's better (in impersonal constructions, e.g. 'mieux vaut')
an improvement (often slight)
On constate un petit mieux dans la situation cette semaine.
There's a small improvement in the situation this week.
Notes
GENERAL INFO
Mieux is an adverb meaning "better." It is the comparative form of "bien" (well).
USAGE
Mieux modifies verbs or other adverbs.
Examples: "Je vais mieux." (I am feeling better.) "Tu chantes mieux qu'avant." (You sing better than before.) "Fais de ton mieux." (Do your best.)
TRAPS
Do not confuse mieux (adverb) with "meilleur" (adjective). Mieux modifies verbs or adverbs, while "meilleur" modifies nouns and agrees in gender/number.
For the superlative adverb "the best" is not "le mieux" but "le meilleur".
Trap: "J'ai un *mieux* livre" (incorrect). Correct: "J'ai un *meilleur* livre."
