/ ˈbætʃələ(r); NAmE / noun
1.
a man who has never been married :
an eligible bachelor (= one that many people want to marry, especially because he is rich)
a confirmed bachelor (= a person who does not intend to marry; often used in newspapers to refer to a homosexual man)
—compare spinster
2.
(usually Bachelor ) a person who has a Bachelor's degree (= a first university degree) :
a Bachelor of Arts / Engineering / Science
—see also BA , BEd , BSc
3.
( CanE ) = bachelor apartment
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WORD ORIGIN
Middle English : from Old French bacheler ; of uncertain origin.