The Collaborative International Dictionary of English v.0.48:

Swain \Swain\, n. [OE. swain, swein, Icel. sveinn a boy,
   servant; akin to Sw. sven, Dan. svend, AS. sw[=a]n, OHG.
   swein.]
   1. A servant. [Obs.]
      [1913 Webster]

            Him behoves serve himself that has no swain.
                                                  --Chaucer.
      [1913 Webster]

   2. A young man dwelling in the country; a rustic; esp., a
      cuntry gallant or lover; -- chiefly in poetry.
      [1913 Webster]

            It were a happy life
            To be no better than a homely swain.  --Shak.
      [1913 Webster]

            Blest swains! whose nymphs in every grace excel.
                                                  --Pope.
      [1913 Webster]

WordNet (r) 3.0 (2006):

swain
    n 1: a man who is the lover of a girl or young woman; "if I'd
         known he was her boyfriend I wouldn't have asked" [syn:
         boyfriend, fellow, beau, swain, young man]

Moby Thesaurus II by Grady Ward, 1.0:

44 Moby Thesaurus words for "swain":
   Casanova, Don Juan, Lothario, Romeo, amoroso, beau, bodyguard,
   boyfriend, caballero, cavalier, cavaliere servente, chaperon,
   companion, conductor, convoy, duenna, escort, esquire, fellow,
   fellow traveler, flame, gallant, gentleman friend, gigolo, guard,
   inamorato, lady-killer, love-maker, man, necker, old man, petter,
   philanderer, safe-conduct, seducer, sheik, shepherd, spark,
   sparker, squire, sugar daddy, usher, wooer, young man



U.S. Gazetteer Counties (2000):

Swain -- U.S. County in North Carolina
   Population (2000):    12968
   Housing Units (2000): 7105
   Land area (2000):     528.100785 sq. miles (1367.774696 sq. km)
   Water area (2000):    12.543112 sq. miles (32.486509 sq. km)
   Total area (2000):    540.643897 sq. miles (1400.261205 sq. km)
   Located within:       North Carolina (NC), FIPS 37
   Location:             35.421822 N, 83.446528 W
   Headwords:
    Swain
    Swain, NC
    Swain County
    Swain County, NC