IPA: /nɒnˈspiːtʃ/
KK: /nɑnˈspiːtʃ/
Referring to something that is not related to spoken or verbal communication.
The presentation included nonspeech elements like images and graphs.
Nonspeech → It is formed from "non-" (meaning not) and "speech" (from Old English "specan", meaning to speak). The word "nonspeech" refers to the absence of speech or the state of not speaking.
Think of 'not' ('non-') combined with 'speaking' ('speech') — that's why nonspeech means not speaking.