What does "a great deal" mean?

Very much; to a great extent; a lot; lots.

What is a synonym for "a great deal"?

Common synonyms include: a good deal, a lot, a lot of, beaucoup, considerably, ever so.

adv

adv ·Rare ·Advanced level

Adverb

1
Very much; to a great extent; a lot; lots. idiomatic, not-comparable
"We had a great deal more money after winning the lottery."

Adverb

"We had a great deal more money after winning the lottery."