Solo \So"lo\ (s[=o]"l[-o]), n.; pl. E. {Solos} (s[=o]"l[=o]z), It. {Soli}. [It., from L. solus alone. See {Sole}, a.] (Mus.) A tune, air, strain, or a whole piece, played by a single person on an instrument, or sung by a single voice. [1913 Webster]