1. a person who is married to one’s biological parent but is not one’s biological parent

Examples

• My stepparent has been part of our family for five years.
• She considers her stepparent to be like a real parent to her.
• The children had to adjust to living with their new stepparent.
• Being a stepparent can be challenging but rewarding.
• He became a stepparent when he married her mother.
• The stepparent attended all the school events with the family.