很 (hěn) functions as the standard degree adverb in Mandarin, equivalent to "very" or "quite" in English. One key grammatical point is that in Mandarin, adjectives used as predicates typically require an adverb like 很 before them - saying 她好 alone sounds incomplete or implies a comparison, while 她很好 is the natural neutral form meaning "she is fine/good."

The character combines the "heart/emotion" radical with a component suggesting stubbornness or going against, historically implying strong feeling. In modern usage it has neutralised to a simple intensifier, and native speakers often use it as a linking word without strong emphasis. When genuine emphasis is needed, 非常 (fēicháng) or 太 (tài) are preferred.