Both Uses

illustrate
in
Anne Of Green Gables
(Edited)

Go into the sitting room, Anne—be sure your feet are clean and don't let any flies in—and bring me out the illustrated card that's on the mantelpiece.
p. 54.3 *

illustrated = accompanied by a drawing
…when Sam Sloane proceeded to explain and illustrate "How Sockery Set a Hen" Anne laughed until people sitting near her laughed too, more out of sympathy with her than with amusement at a selection that was rather threadbare even in Avonlea;
p. 149.1 *

illustrate = help make clear

Definitions:

(1) (illustrate as in: as illustrated by this example)
to help make clear -- typically by example
(2) (illustrate as in: an illustrated children's book)
to draw pictures (or provide photographs) to accompany a book or other writing
(3) (meaning too rare to warrant focus)