Overview
The character 信 (xìn) primarily means "letter" as a noun, referring to a written message sent to someone. It also functions as a verb meaning "to believe" or "to trust." This dual use is common in Chinese and important to distinguish by context.
Usage Notes
When 信 means "letter," it is often used with measure words like 封 (fēng), e.g., 一封信 (a letter). When used as a verb, it often appears in compounds like 相信 (xiāngxìn, "to believe") or 信赖 (xìnlài, "to trust").
Common Collocations
Register and Tone
信 is neutral in tone and appropriate in both formal and informal contexts. When used as "letter," it is a common everyday word. As "believe," it is often used in both spoken and written Chinese.
Common Confusion
Don't confuse 信 (xìn, "letter" or "believe") with 讯 (xùn, "news" or "information"), which sounds similar but has different meanings and usage.
Summary
Understanding 信's dual meaning helps learners use it correctly in conversation and writing, whether referring to a physical letter or expressing trust and belief.