confirm · v
confirm (MAKE ARRANGEMENT CERTAIN)
B1 to make an arrangement or meeting certain, often by telephone or in writing
Dictionary examples:
She confirmed her vacation plans, but forgot to confirm her boss's approval. (0.0)
I confirmed my alarm for 6 AM, but my brain hasn't confirmed it'll wake up. (0.0)
I confirmed my dentist appointment, but forgot to confirm my toothbrush's attendance. (0.0)
I've accepted the job over the phone, but I haven't confirmed in writing yet. (34.5)
Flights should be confirmed 48 hours before departure. (35.3)
Six people have confirmed that they will be attending and ten haven't replied yet. (39.7)
confirm (PROVE TRUE)
B2 to say or show that something is true
Dictionary examples:
His wife confirmed that he had left the house that morning. (37.2)
The leader's speech was impressive and confirmed her faith in the party. (41.3)