Definition of "junior" []

• Used to distinguish a son from his father when they have the same given name. (adjective)
• Intended for or including youthful persons: a junior sports league. (adjective)
• Lower in rank or shorter in length of tenure: a junior officer; the junior senator. (adjective)
• Of, for, or constituting students in the third year of a U.S. high school or college: the junior class. (adjective)
• Lesser in scale than the usual. (adjective)

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.

• "When the junior senator from Wyoming brandishes a piece of paper on the Senate floor (where, as a character points out, libel laws do not apply) to proclaim, "I have here in my hand ..." he clearly calls out the glowering ghost of the ­junior senator from Wisconsin."
• "Jimmy junior is also surprised to find out he has a sister who is adopted and African-American."
• "The Royal Ontario Museum had just begun a special program for what they called junior members and my mother signed me up at age of nine and I believe I came back you know at the end of the first session and said, I could barely pronounce the word, "I'm going to be an archaeologist.""