Testimony/ˈtestɪməʊni/ Definition 1 of 3Pro Tip 1/3Court Usage Testimony is often linked to legal scenarios, where witnesses share what they know. The judge heard the witness's testimony. Pro Tip 2/3Truth Commitment In court, testimony is given under oath, signifying the speaker is committed to the truth. He took the oath before giving his testimony. Pro Tip 3/3Pivotal for Verdict A testimony can greatly influence the outcome of a trial, stressing its importance. Her testimony tipped the scales in the trial.