These are word's definitions related to testify. Click on any word to go to its word's detail page. Or, go to the definition of testify.
0 to speak seriously about something, especially in a law court, or to give or provide proof:
1 to speak seriously about something, esp. to tell what you know about a case in a court of law after you have officially promised to tell the truth:
2 to make a formal statement about something, especially in a court of law:
3 to say that something is true: