姐姐 refers to an older sister. She is usually the eldest daughter in a family and takes on a protective and caring role towards her younger siblings.
哥哥 (gēgē): This term refers to an older brother. He is like a shield, providing protection and support for his younger siblings.
妹妹 (mèimei): This term refers to a younger sister. She is like a little flower that brings joy and sweetness to the family.
弟弟 (dìdi): This term refers to a younger brother. He is like a playful puppy, bringing energy and excitement into the household.