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sister (EN)
noun

noun “sister”

singular sister, plural sisters or uncountable
  1. a female with the same parents as someone else
    My younger sister and I used to build forts in the living room every weekend.
  2. a woman who is a member of a religious community, often called a nun
    Sister Maria devoted her life to helping the poor in her community.
  3. a type of butterfly with dark wings
    While hiking, we spotted a beautiful sister butterfly resting on a leaf.
  4. in the UK, a nurse with senior or supervisory responsibilities
    The ward sister at the hospital was very kind when explaining the procedure to me.
  5. a friendly way to address or refer to a woman
    Hey sister, can you spare a moment to help me with this?