Definition of confirm
- confirm a treaty
- confirm one's resolve
- confirm a rumor
- confirm an order
The tests confirmed the doctors' suspicions of cancer.
The attack confirmed her worst fears about the neighborhood.
The award confirmed her status as one of the great movie actresses.
The dentist's office called to confirm your appointment for tomorrow.
We have a reservation for you for tomorrow night. Please call to confirm.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'confirm.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use: 13th centurySee Words from the same year
: to state or show that (something) is true or correct
: to tell someone that something has definitely happened or is going to happen : to make (something) definite or official
: to make (something) stronger or more certain : to cause (someone) to believe (something) more strongly
What made you want to look up confirm? Please tell us where you read or heard it (including the quote, if possible).