Source : Webster's Revised Unabridged Dictionary (1913)

Snore \Snore\ (sn[=o]r), v. i. [imp. & p. p. {Snored}
   (sn[=o]rd); p. pr. & vb. n. {Snoring}.] [OE. snoren, AS.
   snora a snoring; akin to LG. snoren, snorken, snurken, to
   snore, D. snorken, G. schnarchen to snore, schnarren to
   rattle, MHG. snarren, Sw. snarka to snore, Icel. snarka to
   sputter, fizzle. Cf. {Snarl} to growl, {Sneer}, {Snort}. See
   {Snoring}.]
   To breathe with a rough, hoarse, nasal voice in sleep.

Snore \Snore\, n.
   A harsh nasal noise made in sleep.

Source : WordNet®

snore
     n 1: the rattling noise produced when snoring
     2: the act of snoring or producing a snoring sound [syn: {snoring},
         {stertor}]

snore
     v : breathe noisily during one's sleep; "she complained that her
         husband snores" [syn: {saw wood}, {saw logs}]