1) to watch
2) metaphorically give strict attention to, be cautious, active
2a) to take heed lest through remission and indolence some destructive calamity suddenly overtake one
Part of Speech: verb
Citing in TDNT: 2:338, 195
From G1453; to keep awake, that is, watch (literally or figuratively): - be vigilant, wake, (be) watch (-ful).
|a stay awake||23.72|
|c be alive||23.97|
|b be alert||27.56|
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root γρηγορέω; click on the second column to search for that grammatical form of the root γρηγορέω; click on the third column to search for that word and grammatical form; click on the total to search for the root γρηγορέω.