zzz Interjection, zzz buzz (sound made by some insects' flight) Appox. usage (any sense): 2.7 per million words Appox. usage (any sense): 2.7 per million words
sfor Noun, n, sfor zzz (sound of snorring) Appox. usage (any sense): 0.018 per million words Appox. usage (any sense): 0.018 per million words