All 5 Uses

adapt
in
The Story of Edgar Sawtelle
(Edited)

A large family (Fringillidae) of small song-birds, including the bunting, sparrow, and goldfinch, having a small conical beak adapted to cracking seeds.
p. 106.3 *

adapted = well-suited
Suppose those two points we take are the wolf and the domestic dog. That does imply something else farther along the same line—the "next dog," as you like to phrase it. But this is where your thinking goes awry, for along any such biological line, the farther points are not more advanced than the earlier points, they are only better adapted.
p. 177.1

adapted = suited (to the current environment)
The latter is not a realistic possibility—mutations occur at an extremely low rate in any population, and of course the chance of a specific mutation that would better adapt a dog for companionship …. well, it is possible, but statistically unlikely.
p. 177.4

adapt = change (to fit)
Spears and creases of white shot between the trees, but Edgar would not turn his dark-adapted eyes back to look.
p. 327.6 *

adapted = adjusted
He'd believed as fervently in the power of breeding as she believed in training—that there was nothing in a dog's character that couldn't be adapted to useful work.
p. 482.8

adapted = made suitable

Definitions:

(1) (adapt as in: adapted to the new rules)
changed to fit a different situation; or made suitable
(2) (adapted as in: the species is well adapted for)
to be especially well suited or appropriate for something
(3) (meaning too rare to warrant focus)