testify
Definitions
To give evidence as a witness, usually under oath in court
（通常在法庭上宣誓）作证，提供证词
To serve as clear proof or evidence of something
证明，表明，是……的明证
Root Breakdown
Root-derivedtest (witness) + -ify (to make/do) = literally 'to act as a witness.' You stand up and swear to what you know — that is the courtroom sense. The looser sense follows naturally: when results 'testify' to hard work, the evidence itself is bearing witness.
Root test still carries 11 more wordsUsage Guide
- In court (neutral/legal): testify under oath, testify in court
- Take sides: testify against (someone), testify on behalf of / for (someone)
- Figurative 'be proof of': testify TO something — The results testify to her talent. Don't use this pattern for the courtroom sense.
Example Sentences
- 1.
She agreed to testify against her former employer in court.
- 2.
Three witnesses will testify at the trial next week.
- 3.
The crowded restaurant testifies to the quality of its food.