noun

1. A set of twelve.

   “Can I have a dozen eggs, please?”

2. (as plural only, always followed by of) A large, unspecified number of, comfortably estimated in small multiples of twelve, thus generally implied to be significantly more than ten or twelve, but less than perhaps one or two hundred; many.

   “There must have been dozens of examples just on the first page.”

3. An old English measure of ore containing 12 hundredweight.

Synonyms: a great deal, a lot, heaps, hundreds, loads, lots, many, millions