Step-parents are individuals who marry into a family where one partner has children from a previous relationship. However, not everyone likes to use the term "step-parents," as it may come with negative stereotypes or associations. Some alternative synonyms for step-parents include "bonus parents," "co-parents," "partner parents," or simply "parents." Others may prefer a more familial term, such as "second mom" or "second dad," to help establish a closer relationship with their step-children. Ultimately, the most important thing is to find a term that respects the relationship and acknowledges the love and care that these individuals provide to their step-children.