Synonyms in Detail: sister and sis Usage & Differences

What context can I use each word in?

Learn when and how to use these words with these examples!

sister

Example

My sister is coming to visit me this weekend. [sister: noun]

Example

She's like a sister to me, we've been friends for years. [sister: noun]

Example

She's a sister in the church and we often attend services together. [sister: noun]

sis

Example

Hey sis, how was your day? [sis: noun]

Example

My sis and I are planning a trip next month. [sis: noun]

Example

Sis, can you help me with my homework? [sis: noun]

Good things to know

Which word is more common?

Sister is more commonly used than sis in everyday language. Sister is a standard term for a female sibling and is widely recognized, while sis is more informal and may not be understood by everyone.

What’s the difference in the tone of formality between sister and sis?

Sister is more formal than sis and can be used in various formality levels, including formal and informal contexts. Sis is mainly used in casual conversations with close family or friends and is not appropriate for formal situations.

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