свидетельствовать

1) General subject: argue (о чем-л.), attest, authenticate, be declarative of (о чем-л.), bear evidence, bear evidence of (smth.) (о чем-л.), bear testimony, bear testimony to (о чем-л.), bear witness, bear witness of, bear witness to, bespeak, certify, depose, evidence, examine, give evidence, give evidence of (smth.) (о чем-л.), give testimony to (о чем-л.), give witness, indicate (о чем-л.), militate (об уликах, фактах), militate (against), point, proclaim (о чем-л.), purport (о чём-л.), show, speak (the facts speak for themselves - факты говорят сами за себя), stamp (о чем-л.), tell, testate, testify (о чем-либо), witness, bear evidence of, give evidence of, go to show that..., speak for oneself (о чем-л.), bear testament (о чем-л. - to smth.), confirm, bear out

2) Medicine: indicate

3) Engineering: homologate

4) Mathematics: appear, attest (to), be clear, be obvious, demonstrate, follow, testify (to)

5) Religion: bear, council, counsel

6) Law: avouch, avouchment, bear testimony witness, lead, vouch

7) Bible: accredit

8) Diplomatic term: argue (о чём-л.)

9) Politics: (о чем-л.) be evidence of (smth), clearly show, is convincing proof that, point to the fact that

10) Scottish language: depone

11) Jargon: back up (за или против)

12) Business: argue, certificate, prove

13) Makarov: be indicative of (о чем-л.), bear record to, go to show that (...)

14) Christianity: preach