1. Sisters in English are called "sisters". The word "sister" refers to a female sibling, someone who shares at least one parent with you. Sisters can be younger or older than you, but they are your female siblings nonetheless.

2. Sisters are often seen as the closest companions. They can be supportive, loving, and caring towards each other. Sisters often share a special bond that is unique to them. This bond is often strengthened through shared experiences, childhood memories, and a deep understanding of each other.

3. Sisters can be both biological and non-biological. Biological sisters share the same biological parents and are connected by blood. Non-biological sisters may not share the same bloodline but have formed a strong and meaningful sisterhood through their close relationship and emotional connection.

4. Sisters are often considered best friends. They know each other's secrets, dreams, and fears. They are there to celebrate each other's successes and support each other during challenging times. Whether it's sharing clothes, giving advice, or simply spending time together, sisters play a pivotal role in each other's lives.

5. Having a sister can bring both joy and challenges. While sisters can be the best source of support and affection, conflicts and disagreements are not uncommon. However, it is through these challenges that sisters learn to communicate effectively, compromise, and grow together.

6. In conclusion, a sister is someone who holds a special place in your heart and life. They are your lifelong confidante, partner in crime, and constant source of love and support. Whether they are younger or older, biological or non-biological, sisters enrich our lives in numerous ways and make the journey of life more meaningful.