Definition of "stepbrother" [step•broth•er]

• A son of one's stepparent. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "We could talk about all sorts of things while driving around the Northeast with the family (one thing I have always liked and respected about my stepbrother is his fierce intelligence - simply put, he's smarter than I am)."
• "My stepbrother is a missionary who works with former drug addicts and runaways in a big city."
• "Daniel, doesn ` t sound good when you call your stepbrother and you say, do you love me?"