打动 (dǎ dòng) means 'to move (emotionally), to touch' as a transitive verb. It is nearly synonymous with 感动 (gǎn dòng), but 感动 is more versatile (verb and adjective) and common in everyday speech, while 打动 often appears in fixed expressions like 打动某人的心 ('to touch someone's heart'). Compared to 触动 (chù dòng, 'to stir up, to provoke'), 打动 focuses on causing emotional warmth rather than triggering a reaction.