SCSI

SCSI n.  [Small Computer System Interface] A bus-independent
   standard for system-level interfacing between a computer and
   intelligent devices.  Typically annotated in literature with
   `sexy' (/sek'see/), `sissy' (/sis'ee/), and `scuzzy'
   (/skuh'zee/) as pronunciation guides -- the last being the
   overwhelmingly predominant form, much to the dismay of the
   designers and their marketing people.  One can usually assume that
   a person who pronounces it /S-C-S-I/ is clueless.