What is another word for asserting under oath?
Pronunciation: [ɐsˈɜːtɪŋ ˌʌndəɹ ˈə͡ʊθ] (IPA) 
When someone testifies under oath, they are making a solemn declaration that their statements are true. Synonyms for "asserting under oath" include swearing, affirming, attesting, avowing, declaring, and vouching. When a witness is called to testify in a court of law, they are required to take an oath or make an affirmation that they will tell the truth. If they knowingly provide false information while under oath, they can be charged with perjury. The act of taking an oath or affirmation is a serious and legally binding obligation that should never be taken lightly.
