instant, moment, space, suddenly

Boyd’s Bible Dictionary:

(stand in). Urgent (Luke 7:4; 23:23); fervent (Acts 26:7; Rom. 12:12).

Concise Bible Dictionary:

“Urgent” with importunity (Luke 7:4; Luke 23:23; Acts 26:7; Rom. 12:12; 2 Tim. 4:2).

Strong’s Dictionary of Hebrew Words:

Number:
7281 (find all occurrences in KJV Bible)
Transliteration:
rega`
Phonic:
reh’-gah
Meaning:
from 7280. a wink (of the eyes), i.e. a very short space of time
KJV Usage:
instant, moment, space, suddenly