很好 (hěn hǎo) literally combines the adverb 很 (hěn), meaning 'very' or 'quite', and the adjective 好 (hǎo), meaning 'good'. Together, they form a common phrase meaning 'very good' or 'excellent'. Unlike in English, 很 does not always intensify meaning to an extreme degree—it often serves as a neutral modifier that makes the adjective grammatically complete in predicative position, especially in statements of state or evaluation.

This phrase is widely used in everyday speech to express approval, satisfaction, or positive assessment—whether about someone’s health, performance, mood, food, weather, or plans. It’s polite, versatile, and appropriate in both casual and semi-formal contexts. Note that while it can appear after nouns (e.g., 这个主意很好), it cannot function as a standalone noun or verb—it only modifies or predicates.