A dozen (commonly abbreviated doz or dz) is a grouping of twelve. The dozen may be one of the earliest primitive integer groupings, perhaps because there are approximately a dozen cycles of the Moon, or months, in a cycle of the Sun, or year.

Is a dozen 12 or 10?

A "dozen" is a unit of measurement. It means twelve (12) items of something. The term goes back to duodecim, which means 12 in Latin. Humans might have started to count on a base 12 because there are approximately 12 cycles of the moon in one cycle of the sun.

Can a dozen be more than 12?

Senior Member. Hello! I understand "dozen" means exactly 12 when people talk about items that usually go in dozens (like eggs, for example).