Perjure
/ˈpɜːrdʒər/
Definition 1 of 1
Pro Tip 1/3Serious Crime
Perjuring is a criminal offense leading to fines or imprisonment. 
Martha was hesitant to testify, aware that to perjure could result in jail time.
Pro Tip 2/3Legal Context
Use 'perjure' when referring to lies told during legal proceedings. 
The witness decided not to perjure themselves and told the truth.
Pro Tip 3/3Requires Oath
'Perjure' specifically means lying after promising to tell the truth, often on a Bible or other sacred text. 
The juror was warned that to perjure after taking an oath was a serious offense.