'达成' is a compound verb meaning 'to reach (an agreement)' or 'to accomplish (a goal, target, or result)'. It combines 达 (dá), meaning 'to reach, attain', and 成 (chéng), meaning 'to succeed, complete, or become'. Together, they emphasize the successful conclusion of a process—especially one involving negotiation, effort, or planning. It is commonly used in formal, professional, and everyday contexts when discussing agreements, objectives, contracts, or milestones.

This verb is transitive and requires a direct object—usually an abstract noun like 'agreement', 'goal', 'target', 'consensus', or 'deal'. It often appears in written reports, business meetings, news articles, and personal plans. While it can be used in casual speech, it carries a slightly formal or serious tone, unlike more colloquial alternatives like '做到' (zuò dào) or '实现' (shí xiàn). It is never used for physical actions or concrete achievements without an implied objective or agreement.