Biweekly can mean happening twice a week or once every two weeks, depending on context. Because of this confusion, people often use clearer phrases like “twice a week” or “every other week.”
From “bi-” meaning “two” and “weekly” meaning “every week.” The double meaning arose because “bi-” can suggest both “two times in” and “every two.”
Biweekly is a classic “trap word” in schedules—people think it’s precise, but it often causes misunderstandings. If money or deadlines are involved, it’s wiser to avoid the word and spell out exactly what you mean.
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