English Reference
Idiom idiom

a great deal of sth


a large amount of something. You use this with things you cannot count, like time, money, or effort.


SIMPLE

“She spent a great deal of time on her project.”

CONTEXTUAL

“The new project requires a great deal of effort from everyone on the team to succeed.”

COMPLEX

“After a great deal of careful thought, the committee decided to approve the proposal despite the significant financial risks involved.”

Last updated April 22, 2026