Definition
信封 (xìnfēng) is the everyday word for 'envelope' — the paper container you mail a letter in. 函 (hán) is a formal, literary term for 'envelope' (and also 'letter'), used mainly in writing or official contexts, not in daily speech.
noun
envelope
Measure word · 个
Examples
- 信封。Wǒ xūyào yí gè xìn fēng jì xìn.I need an envelope to mail a letter.
- 信封。Tā bǎ xìn fàng jìn xìn fēng lǐ.He put the letter into the envelope.
- 信封。Wǒ cóng péngyou nàlǐ shōudào yí gè xìn fēng.I received an envelope from a friend.
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