All 5 Uses

regent
in
Paradise Lost
(Auto-generated)

So spake the false dissembler unperceived;
For neither Man nor Angel can discern
Hypocrisy, the only evil that walks
Invisible, except to God alone,
By his permissive will, through Heaven and Earth:
And oft, though wisdom wake, suspicion sleeps
At wisdom's gate, and to simplicity
Resigns her charge, while goodness thinks no ill
Where no ill seems: Which now for once beguiled
Uriel, though regent of the sun, and held
The sharpest-sighted Spirit of all in Heaven;
Who to the fraudulent impostor foul,
In his uprightness, answer thus returned.†
Book 3 *
So spake the false Arch-Angel, and infused
Bad influence into the unwary breast
Of his associate: He together calls,
Or several one by one, the regent Powers,
Under him Regent;†
Book 5
So spake the false Arch-Angel, and infused
Bad influence into the unwary breast
Of his associate: He together calls,
Or several one by one, the regent Powers,
Under him Regent;†
Book 5
By tincture or reflection they augment
Their small peculiar, though from human sight
So far remote, with diminution seen,
First in his east the glorious lamp was seen,
Regent of day, and all the horizon round
Invested with bright rays, jocund to run
His longitude through Heaven's high road;†
Book 7
cautious of day,
Since Uriel, regent of the sun, descried
His entrance, and foreworned the Cherubim
That kept their watch;†
Book 9

Definitions:

(1) (regent)
someone appointed to a position of temporary or delegated authority -- such as a temporarily while the king or queen is too young, too sick, or away; or a member of a governing board
(2) (meaning too rare to warrant focus)