Empirical evidence 

Observations and measurements

I don't know how to use empirical evidence in a sentence

Empirical evidence by I'm a unicorn04 August 27, 2017

Empirical Evidence 

Demanding empirical evidence is a way to deflect attention off yourself when you're being confronted about blatant lies you've told, or rumors you've created out of thin air.

Unless you have empirical evidence, Audrey won't believe the rumors you're telling her.

Empirical Evidence by ItsBrookeBitch July 12, 2015