IPA: /ˌæksɛnˈtjuːeɪʃən/
KK: /ˌæksɛnˈtuːeɪʃən/
The act of emphasizing or highlighting something, often by changing the way it is spoken or presented.
The accentuation of certain words can change the meaning of a sentence.
Accentuation → It is formed from "ad-" (meaning to) and "centus" (meaning to sing or to sound) combined with the suffix "-ation" (indicating a process or action). The word refers to the process of emphasizing or giving prominence to a particular sound or syllable in speech.
Think of 'singing' or 'sounding' ('centus') being emphasized or highlighted ('ad-') — that's what accentuation means.