The difference between Dozen and Few

Dozen is also noun with the meaning: a set of twelve.

Few is also determiner with the meaning: an indefinite, but usually small, number of.

Few is also pronoun with the meaning: few people, few things.

check bellow for the other definitions of Dozen and Few

Dozen as a noun:

A set of twelve.

Examples:

"Can I have a dozen eggs, please?"

"I ordered two dozen doughnuts."

"There shouldn't be more than two dozen Christmas cards left to write."

"Pack the shirts in dozens, please."
Dozen as a noun (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.

Examples:

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

"There were dozens and dozens of applicants before the job was posted."
Dozen as a noun (metallurgy):

An old English measure of ore containing 12 hundredweight.

Few as a pronoun:

Few people, few things.

Examples:

"Many are called, but few are chosen."