viva voce
adjective
[ ˌvʌɪvə ˈvəʊtʃeɪ ]
• (especially of an examination) oral rather than written.
• "a viva voce examination"
viva voce
adverb
• orally rather than in writing.
• "we had better discuss this viva voce"
viva voce
noun
• an oral examination, typically for an academic qualification.
• "candidates may be called for a viva voce"
Origin:
mid 16th century: from medieval Latin, literally ‘with the living voice’.