\Song\ (?; 115), n. [AS. song, sang, fr. singan to sing;
akin to D. zang, G. sang, Icel. s["o]ngr, Goeth. sagws. See
{Sing}.]
1. That which is sung or uttered with musical modulations of
   the voice, whether of a human being or of a bird, insect,
   etc. ``That most ethereal of all sounds, the song of
   crickets.'' --Hawthorne.
2. A lyrical poem adapted to vocal music; a ballad.
3. More generally, any poetical strain; a poem.
         The bard that first adorned our native tongue Tuned
         to his British lyre this ancient song. --Dryden.
4. Poetical composition; poetry; verse.
         This subject for heroic song.         --Milton.
5. An object of derision; a laughingstock.
         And now am I their song. yea, I am their byword.
                                               --Job xxx. 9.
6. A trifle. ``The soldier's pay is a song.'' --Silliman.
{Old song}, a trifle; nothing of value. ``I do not intend to
   be thus put off with an old song.'' --Dr. H. More.
{Song bird} (Zo["o]l.), any singing bird; one of the Oscines.
{Song sparrow} (Zo["o]l.), a very common North American
   sparrow ({Melospiza fasciata}, or {M. melodia}) noted for
   the sweetness of its song in early spring. Its breast is
   covered with dusky brown streaks which form a blotch in
   the center.
{Song thrush} (Zo["o]l.), a common European thrush ({Turdus
   musicus}), noted for its melodius song; -- called also
   {mavis}, {throsite}, and {thrasher}.
Syn: Sonnet; ballad; canticle; carol; canzonet; ditty; hymn;
     descant; lay; strain; poesy; verse.