土-21 到Ⅰ(动) ① arrive; reach ② go to; leave for Ⅱ(形) thoughtful; considerate Ⅲ (介) up until; up to

到   到是形声字。至为形符（含土符）；刀为声符。《说文》注：“至也。从至，刀声。”到义为到达、达到。引申去、往。作形容词，指周全、周密。用于动词后作补语，表示动作达到目的或有了结果。

到Ⅰ(动) ① arrive; reach ② go to; leave for Ⅱ(形) thoughtful; considerate Ⅲ (介) up until; up to