Anyone who is teaching in English to students who have learned it as a second (or third) language soon discovers who careful we must be in speaking. I was refering up above to "pretty hard" as meaning "very hard" and yet "pretty" more commonly means "rather beautiful" than "very" and can be confusing. There are many more odd English words waiting to be blurted out as we travel "abroad", or shall I say beyond our country's borders.