4: one (used before plural nouns that are preceded by a quantifier singular in form): a hundred men (compare hundreds of men); a dozen times (compare dozens of times).
5: indefinitely or nonspecifically (used with adjectives expressing number):
4: one (used before plural nouns that are preceded by a quantifier singular in form): a hundred men (compare hundreds of men); a dozen times (compare dozens of times).
5: indefinitely or nonspecifically (used with adjectives expressing number):