[1] : The Collaborative International Dictionary of English v.0.48

abysm \abysm"\, n. of. abisme; f. abime, ll. abyssimus, a
   superl. of l. abyssus; gr. ?. see abyss.
   an abyss; a gulf. "the abysm of hell." --shak.
   1913 webster
see also:
abyss 

[2] : WordNet (r) 2.0

abysm
     n : a bottomless gulf or pit; any unfathomable or apparently
         unfathomable cavity or chasm or void extending below
         often used figuratively syn: abyss
see also:
abyss 

Abysm >> A Words
Abysm, definition of term: Abysm
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