What is the meaning of single?

noun

• A base hit on which the batter stops safely at first base.
  • synonyms: bingle
• The smallest whole number or a numeral representing this number.
  • usage: "he has the one but will need a two and three to go with it"; "they had lunch at one"
  • synonyms: one, 1, I, ace, unity

verb

• Hit a single.
  • usage: "the batter singled to left field"

adjective

• Being or characteristic of a single thing or person.
  • usage: "individual drops of rain"; "please mark the individual pages"; "they went their individual ways"
  • synonyms: individual
• Used of flowers having usually only one row or whorl of petals.
  • usage: "single chrysanthemums resemble daisies and may have more than one row of petals"
• Existing alone or consisting of one entity or part or aspect or individual.
  • usage: "upon the hill stood a single tower"; "had but a single thought which was to escape"; "a single survivor"; "a single serving"; "a single lens"; "a single thickness"
• Not married or related to the unmarried state.
  • usage: "unmarried men and women"; "unmarried life"; "sex and the single girl"; "single parenthood"; "are you married or single"
  • synonyms: unmarried
• Characteristic of or meant for a single person or thing.
  • usage: "an individual serving"; "single occupancy"; "a single bed"
  • synonyms: individual
• Having uniform application.
  • usage: "a single legal code for all"
• Not divided among or brought to bear on more than one object or objective.
  • usage: "judging a contest with a single eye"; "a single devotion to duty"; "undivided affection"; "gained their exclusive attention"
  • synonyms: undivided, exclusive