Simple Definition of no one
: no person
Full Definition of no one
: no person : nobody
Examples of no one in a sentence
We called, but no one answered.
No one has ever done this before.
There's no one else here.
No one knows her better than I do.
Before 12th Century
First Known Use of no one
before 12th century
NO ONE Defined for Kids
Definition of no one for Students
: 1nobody <No one was home.>
Seen and Heard
What made you want to look up no one? Please tell us where you read or heard it (including the quote, if possible).