Bi-Monthly? Twice a Month?

Does a term like "bi-monthly" sometimes confuse you like it does the rest of the world? If not, beware - someone might be using "bi-monthly" to mean every two months, when you interpret it as twice a month. This makes a big difference when, say, you think you're going to be paid twice a week but the employer used bi-weekly to mean every other week.

Best practice? Don't use these terms if they are likely to cause confusion (which they will!). Write out the actual time period, and give the "bi"s a rest.