Related:

• boxen /bok'sn/ pl.n. [very common; by analogy with VAXen] Fanciful plural of box often encountered in the phrase `Unix boxen', used to describe commodity Unix hardware.
  The connotation is that any two Unix boxen are interchangeable....
• boxen: /bok'sn/ [by analogy with {VAXen}] pl.n. Fanciful plural of {box} often encountered in the phrase `UNIX boxen', used to describe commodity {{UNIX}} hardware.
  The connotation is that any two UNIX boxen are interchangeable. -- The AI Hackers Dictionary...
• The plural of spouse is spice.
• fora pl.n. Plural of forum.
• And the plural of house is....CAT.....'Hmmmm'
• The plural of half is whole.
• The plural of louse is........lice.
• The plural of mouse is........mice.