All 4 Uses

explicit
in
Atlas Shrugged
(Auto-generated)

Oh, I'm sure you don't want to hear me become more explicit!†
Chpt 2.2
Oh, but surely it isn't necessary to be more explicit.†
Chpt 2.2
He wanted her to understand, but he did not want her to understand fully, explicitly, down to the root-since the essence of that modern language, which he had learned to speak expertly, was never to let oneself or others understand anything down to the root.†
Chpt 2.5 *
"Why, sure," he said, but his eyes narrowed, watching her suspiciously, as if he were wondering what motive prompted her to so explicit a statement.†
Chpt 3.3

Definitions:

(1) (explicit as in: explicit instructions)
clear and with enough detail so there is no confusion

Shared information is often divided into two categories: explicit and implicit
(2) (explicit as in: explicit photos and pornography)
expressing or displaying sexual activity or violence in a detailed manner
(3) (meaning too rare to warrant focus)