People or things that are younger, lower in rank, or in a later year of school than others of the same group.
From Latin 'iunior' meaning 'younger.' The word entered English through Old French and kept its basic meaning of 'younger' or 'lesser in rank.'
The initials 'Jr.' you see after people's names (like Martin Luther King Jr.) come straight from this word—it literally means the son is younger than his father!
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