Pronunciation: "si[ng]-gy&-'lar-&-tE
Function: noun
Inflected Form(s): plural -ties
Date: 14th century
1 : something that is singular : as a : a separate unit
     b : unusual or distinctive manner or behavior : PECULIARITY
2 : the quality or state of being singular
3 : a point at which the derivative of a given function of a complex variable
     does not exist but every neighborhood of which contains points for
     which the derivative exists
4 : a point or region of infinite mass density at which space and time are
     infinitely distorted by gravitational forces and which is held
     to be the final state of matter falling into a black hole

singular
Pronunciation: 'si[ng]-gy&-l&r
Function: adjective
Etymology: Middle English singuler, from Middle French, from Latin singularis,
                  from singulus only one -- more at SINGLE
Date: 14th century
1 : a : of or relating to a separate person or thing : INDIVIDUAL
     b : of, relating to, or being a word form denoting one person, thing, or instance
     c : of or relating to a single instance or to something considered by itself
2 : distinguished by superiority : EXCEPTIONAL [an artist of singular attainments]
3 : being out of the ordinary : UNUSUAL [on the way home we had a singular adventure]
4 : departing from general usage or expectation : PECULIAR, ODD [the air had a singular chill]
5 : a: of a matrix : having a determinant equal to zero
     b: of a linear transformation : having the property that the matrix
     of coefficients of the new variables has a determinant equal to zero
synonym see STRANGE
- sin-gu-lar-ly adverb

singular
Function: noun
Date: 14th century
1 : the singular number, the inflectional form denoting it, or a word in that form
2 : a singular term

single
Pronunciation: 'si[ng]-g&l
Function: adjective
Etymology: Middle English, from Middle French, from Latin singulus
                  one only; akin to Latin sem- one -- more at SAME
Date: 14th century
1 a : not married b : of or relating to celibacy
2 : unaccompanied by others : LONE, SOLE [the single survivor of the disaster]
3 a (1) : consisting of or having only one part, feature, or portion [single consonants]
     (2) : consisting of one as opposed to or in contrast with many :
            UNIFORM [a single standard for men and women]
     (3) : consisting of only one in number [holds to a single ideal]
   b : having but one whorl of petals or ray flowers [a single rose]
4 a : consisting of a separate unique whole : INDIVIDUAL [every single citizen]
   b : of, relating to, or involving only one person
5 a : FRANK, HONEST
   b : exclusively attentive [an eye single to the truth]
6 : UNBROKEN, UNDIVIDED
7 : having no equal or like : SINGULAR
8 : designed for the use of one person only [single bed]

single
Function: verb
Inflected Form(s): sin-gled; sin-gling /-g(&-)li[ng]/
Date: 1628
transitive senses
1 : to select or distinguish from a number or group -- usually used with out
2 a : to advance or score (a base runner) by a single
   b : to bring about the scoring of (a run) by a single
intransitive senses : to make a single in baseball

single
Function: noun
Date: 1646
1 a : a separate individual person or thing
   b : an unmarried person and especially one young and socially active -- usually used in plural
   c : a recording having one short tune on each side
2 : a base hit that allows the batter to reach first base
3 a plural : a tennis match or similar game with one player on each side
b : a golf match between two players -- usually used in plural
4 : a room (as in a hotel) for one guest -- compare DOUBLE