全 (quán) as an adjective means 'whole, entire' and directly modifies nouns (e.g., 全校 'the whole school'). It is broader than 整个 (zhěng gè), which emphasizes a single unit, and 整 (zhěng), which often implies completeness. As an adverb, 全 means 'completely, entirely' and is more colloquial than 完全 (wán quán); unlike 都 (dōu), which indicates 'all' of a group, 全 focuses on the completeness of an action.