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Wiktionary
oracy

n. 1 (context uncountable English) The ability to speak, and to understand spoken language 2 (context countable English) A measure of this ability

Wikipedia
Oracy

The term oracy was coined by Andrew Wilkinson, a British researcher and educator, in the 1960s. This word is formed by analogy from literacy and numeracy. The purpose is to draw attention to the neglect of oral skills in education.