Meanings
How to pronounce "one up":
AU
To outdo, to perform something slightly better than a competitor's prior effort.
Example: "Every year the neighbors try to one-up each other with their holiday lights."
An advantage over someone.
Example: "WePay wants to get one-up in the mobile payments race with its new iOS app for small businesses."
Alternative spelling of 1-up (“extra life”)
Example: "If you hit that block, you can get a one up."
Example Sentences
1
She always tries to one up her colleagues by finishing her tasks before them.
2
He constantly brags about his achievements, trying to one up everyone else.
3
My friend loves to tell exaggerated stories just to one up everyone else in the group.
4
They are engaged in an endless rivalry, always trying to one up each other.
5
In their game of friendly competition, each player tries to one up the other.