Another pair of words that could lead to embarrassment if used in the wrong way…

consul: [noun] a State agent in a foreign place, usually to represent the state in that foreign place
 I contacted the Australian Consul about voting when I was in Europe last year.

console: [verb] comfort and make someone feel better; [noun] control panel or switchboard of electrical equipment; [noun] cabinet or frame supporting equipment such as a TV or stereo
Family and friends gathered around the widow in an attempt to console her.
The sound technician pored over the console to find the error and restore sound.