bach·e·lor
 /ˈbæʧəlɚ/  noun  ,  pl   -lors [  count  ]
  1 : a man who is not married; especially : a man who has never been married
   an eligible bachelor [=an unmarried man who is regarded as a desirable husband]
   a confirmed bachelor [=a man who has been a bachelor for a long time and who shows no interest in marrying]
   his apartment is a typical bachelor pad [=a typical apartment of an unmarried man]
   They threw the groom a bachelor party. [=a party for a man who is about to be married that is usually attended by men only]
  2 : a person who has received a bachelor's degree
   a bachelor of arts
  bach·e·lor·hood /ˈbæʧəl̩ɚˌhʊd/  noun   [  noncount  ]