A steel company here in PA (now defunct) that I worked for had the IT guys find a way to remove certain words from the spell check dictionary after the Public Relations Department sent out letter with a very important "L" missing from their department's name.
Technically it was a word, and spelled right.
2011 PrimeTime Tracer 2600rls
2001 GMC Yukon XL 2500, 6.0L 4.10:1 axle ratio
Nights camping 2014 - 17
2013 - 15