We don't have synonyms for gliss yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are gloss, glass and bliss.
(n) :
(music) Abbreviation of glissando. [(music) Either a continuous sliding from one pitch to another ("true" glissando), or an incidental scale played while moving from one melodic note to another ("effective" glissando).]
(v) :
(music) Abbreviation of glissando. [(music) To play with a glissando or sliding effect.]
(n) :
(music) Abbreviation of glissando. [(music) Either a continuous sliding from one pitch to another ("true" glissando), or an incidental scale played while moving from one melodic note to another ("effective" glissando).]
(v) :
(music) Abbreviation of glissando. [(music) To play with a glissando or sliding effect.]