hi

hi — 感嘆詞

1. a friendly word you say when you meet or see someone you know — more casual and

1.感嘆詞A1
釋義

嗨；哈囉

非正式打招呼用語

a friendly word you say when you meet or see someone you know — more casual and warmer than hello.

例句

Amelia smiled and said hi to her new classmates on the first day of school.

Amelia 笑著對新同學說嗨，那是她開學的第一天。

noun-like use: 'said hi' as object of verb

Hi, Bao! I did not expect to see you at this café today.

嗨，Bao！我沒想到會在今天的咖啡店遇到你。

exclamation use: 'Hi, [name]!' with comma

同義詞
  • hello

    the standard, neutral greeting that works in both formal and informal settings

  • hey

    even more casual than hi, often used between close friends to get someone's attention

  • howdy

    regional American English, especially in the South and West; very informal

反義詞
  • goodbye

    used when leaving or ending a conversation

  • bye

    the informal counterpart of goodbye, used in the same casual settings as hi

用法筆記

Frequently functions as a noun in expressions like 'say hi' or 'give a hi'. Unlike formal greetings such as 'good morning' or 'hello', hi is reserved for casual situations with people you already know. It is uncommon in formal letters, business emails, or when addressing someone in a position of authority.

常見錯誤

❌Hi, Professor Chen' (in a formal academic context).
✅Good morning, Professor Chen' or 'Hello, Professor Chen
💡hi is too casual for formal or hierarchical situations.
❌Hi, I am writing to apply for the position' (in a job application email).
✅Dear Hiring Manager' or 'Dear Sir or Madam
💡hi is not used in formal written correspondence.

hi — 縮寫

hi — 感嘆詞