dic·ta·tion 
/dɪkˈteɪʃən/ noun
/dɪkˈteɪʃən/ noun [noncount] : the act of speaking words that someone writes down or that a machine records : the act of dictating words
▪ He used a tape recorder for dictation. ▪ writing from dictation
▪ He used a tape recorder for dictation. ▪ writing from dictation
take dictation
: to write down the words that someone says so that they can be used in a letter, report, etc.
▪ Her secretary's very good at taking dictation.
▪ Her secretary's very good at taking dictation.
