IPA: /ˌɪl.əˈstræt.ɪv.li/
KK: /ɪlʌstrətɪvli/
In a way that helps to explain or clarify something, often by providing examples or illustrations.
The teacher explained the concept illustratively, using diagrams and charts to help the students understand.
Illustratively → It is formed from "illustrate" (from Latin "illustrare", meaning to light up or make clear) and "-ively" (a suffix forming adverbs meaning in a manner of). The word "illustratively" means in a manner that makes something clear or provides an illustration.
Think of 'illustrate' as making something clear or 'lighting it up' — and '-ively' means in a manner. So, when something is explained illustratively, it is explained in a way that makes it clear.