• synonyms


See more synonyms for stepbrother on Thesaurus.com
  1. one's stepfather's son or stepmother's son by a previous marriage.
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Origin of stepbrother

late Middle English word dating back to 1400–50; see origin at step-, brother
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for stepbrother

father, sibling, mother, cousin, folk, uncle, niece, aunt, agnate, cognate, connection, blood, folks, relation, grandparents, sister-in-law, stepbrother, mother-in-law, sib, stepparent

Examples from the Web for stepbrother

Contemporary Examples of stepbrother

Historical Examples of stepbrother

British Dictionary definitions for stepbrother


  1. a son of one's stepmother or stepfather by a union with someone other than one's father or mother respectively
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for stepbrother


mid-15c., from step- + brother (n.).

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Online Etymology Dictionary, © 2010 Douglas Harper