All 4 Uses

indicate
in
Childhood's End
(Auto-generated)

Moreover, Karellen took no action against those responsible, or even indicated that he had known of the attack.†
Chpt 2 *

indicated = showed
Perhaps they found it physically uncomfortable on Earth, for their size, and the existence of their wings, indicated that they came from a world of much lower gravity.†
Chpt 6
Sometimes, indeed —since there was no pause to indicate the end of one word and the beginning of the next-the entire message was meaningless until it was complete and Ruth had read it back.†
Chpt 8

indicate = show
Beyond this island"—his gesture indicated, and rejected, the rest of the globe—"I fear that the human race has lost its initiative.†
Chpt 17

indicated = showed

Definitions:

(1) (indicate)
to show (point out, demonstrate, express, or suggest)

The form, indicator can refer to many different kinds of things including intentional signals (such as a turn indicator), gauges (such as one that indicates pressure), or a measurement (such as an economic or chemical indicator).
(2) (meaning too rare to warrant focus)