All 8 Uses

illustrate
in
The Adventures of Augie March
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Simon was a blond boy with big cheekbones and wide gray eyes and had the arms of a cricketer--I go by the illustrations; we never played anything but softball.
Chpt 1 *

illustrations = drawings or photographs
It's as follows: In the world of today your individual man has to be willing to illustrate a more and more narrow and restricted point of existence.
Chpt 21 *

illustrate = help make clear
And she illustrated how Mama was to turn to me, terribly exact, if she had only been able to drop her habitual grandeur.†
Chpt 1
Illustrated by Georgie.†
Chpt 1
But the principal illustration was not Georgie but Mama, in her love-originated servitude, simple-minded, abandoned with three children.†
Chpt 1
Thea still intended to sell illustrated articles about Caligula to the National Geographic or Harper's.†
Chpt 15
His portly hard middle hung over with a shirt illustrated with pineapples.†
Chpt 17
The gods stood or lay and persisted in their gray volcano illustrations of what the forces of life are.†
Chpt 20

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)