到达
dàodá · HSK 3
arrive at
🛬 到 = arrive + 达 = reach; both halves mean 'get there'
到 (dào) on its own means 'arrive'; 达 (dá) means 'reach/attain'. Stacked together they reinforce each other — a synonym compound meaning to successfully arrive at or reach a destination.
到 — 刂 knife + 至 (phonetic, 'arrive')
到 is a semantic-phonetic compound. 至 ('to arrive') gives both meaning and sound, while 刂 (knife) was added later, likely as a phonetic reinforcer or to distinguish the written form. The core sense 'to arrive, reach' comes directly from 至, and 到 has carried that meaning since early script forms.