There isn't a simple answer as it depends on who you ask!
Snyk is short for "So Now You Know", but depending on who you talk to it gets pronounced in different ways.
Guy, our CEO and one of the founders pronounces it the same as "sneak". There are others within the team that pronounce it like "snick" - The noise a lock makes when it is shutting, as it makes you more secure.
We don't really mind whichever way you pronounce it, as long as you are finding and fixing your vulnerabilities!