[noun] [U]The secretary took down a letter from dictation (= the act of someone speaking).I'll ask my assistant to take dictation (= write down what I say). A dictation is a test in which a piece of writing is read out to people who are learning a foreign language. The aim of it is to test their ability to hear and write the language correctly.Our French dictation lasted half an hour.
DICTATION
Meaning of DICTATION in English
Cambridge English vocab. Кембриджский английский словарь. 2012