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nybble /nib'l/ (alt. `nibble') n.
[from v. `nibble' by analogy with `bite' => `byte'] Four bits; one [hex] digit; a half-byte. Though `byte' is now techspeak, this useful relative is still jargon. Compare [byte]; see also [bit]. The more mundane spelling "nibble" is also commonly used. Apparently the `nybble' spelling is uncommon in Commonwealth Hackish, as British orthography would suggest the pronunciation /ni:'bl/.
Following `bit', `byte' and `nybble' there have been quite a few analogical attempts to construct unambiguous terms for bit blocks of other sizes. All of these are strictly jargon, not techspeak, and not very common jargon at that (most hackers would recognize them in context but not use them spontaneously). We collect them here for reference together with the ambiguous techspeak terms `word', `half-word' and `double word'; some (indicated) have substantial information separate entries.