The English word for 姐姐 is "older sister".
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How to Write "Sister" in English
In English, the word "sister" refers to a female sibling. To write "sister" in English, simply use the word "sister." However, there are a few variations and terms related to the concept of "sister" that you may find useful.
1. Sister: This is the most common and straightforward term for a female sibling. It can be used to refer to both older and younger sisters.
2. Elder sister: If you specifically want to distinguish between an older sister and a younger sister, you can use the term "elder sister" to refer to the older sibling.
3. Younger sister: On the other hand, if you want to distinguish between an older sister and a younger sister, you can use the term "younger sister" to refer to the younger sibling.
4. Big sister: The term "big sister" is often used to refer to an older sister, emphasizing her role and authority as the elder sibling.
5. Baby sister: If you have a very young sister, you can use the term "baby sister" to refer to her.
6. Sis: "Sis" is a casual and affectionate term for sister. It can be used in a similar way to "sister" but conveys a more informal tone.
7. Sissy: "Sissy" is another informal term for sister, often used among siblings. It is a term of endearment and is commonly used within close family relationships.
8. Soror: In a more formal or literary context, you may come across the word "soror," which means sister.
9. Soul sister: The term "soul sister" is not necessarily related to biological siblings, but it is used to describe a close friend who is like a sister. It signifies a strong bond and connection between two individuals.
10. Step-sister: A step-sister is someone who becomes your sister through the remarriage of one of your parents. If one of your parents marries someone who already has a daughter, that daughter would become your step-sister.
Remember, context and relationship will determine which term is appropriate to use. Each term carries a slightly different connotation, so choose the one that best reflects your relationship with your sister.