Ok, going for full controversy here.
zsh = "zoosh"
ssh = "shoosh"
sudo = sue-dough
Before you achktually me, I know it's supposed to be "sue-DO", because the acronym stands for "superuser do", but for the life of me, when I see those letters together it just seems wrong to pronounce it that way.
I'm relative sure SQL is a backronym for Sequel, and Microsoft had to change the name and wanted to keep the pronunciation. But ess Quall is my favorite so far, that's amazing
The original name SEQUEL, which is widely regarded as a pun on QUEL, the query language of Ingres,[14] was later changed to SQL (dropping the vowels) because "SEQUEL" was a trademark of the UK-based Hawker Siddeley Dynamics Engineering Limited company.[15] The label SQL later became the acronym for Structured Query Language.