They have no idea, even when you have worked in the field for 15 years, one day you are doing an ESL and you get a new word to add to your knowledge base . . .
Essofogus. That would need to go through your memory bank for all the medical words you know beginning with "Eso . . ." OH! Esophagus. Only experience gives you that magic. Or in QA when the MT notes a blank under labs, "Sounds like three pastas in the urine." You have to come up with "3+."
Don't you wish we had a "Sounds Like" dictionary?
I think my next venture is to write that sounds like dictionary. haha.