大使
dàshǐ · HSK 6
ambassador
🎩 大 (big) + 使 (envoy/messenger) = big envoy = ambassador
大 means big/great and 使 means envoy or messenger (from 人 person + 吏 official). A 大使 is literally a great envoy — the top-ranking diplomat a country sends abroad to represent it.
大 — pictograph of a person with arms outstretched
大 is a pictograph showing a person standing with arms and legs spread wide. The outstretched arms suggest 'big' or 'great', extending from the literal image of a large stance to abstract meanings like important or grand. It is one of the oldest characters, found on oracle bones.
使 — person radical 亻 + official 吏
Originally a phono-semantic compound: 亻 (person) gives the meaning and 吏 (official, also a phonetic clue) suggests the sound. The early sense was 'to send a person on a mission,' from which came 'envoy/messenger' and the broader meanings 'to use' and 'to cause/make.'