1) harvest, the act of reaping
1a) fig. of the gathering of men into the kingdom of God
1b) referring to time of reaping, the final judgment, when the righteous are gathered into the kingdom of God and the wicked are cast into hell for ever
Part of Speech: noun masculine
Citing in TDNT: 3:133, 332
From G2325; reaping, that is, the crop: - harvest.
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 θερισμός; click on the second column to search for that grammatical form of the root θερισμός; click on the third column to search for that word and grammatical form; click on the total to search for the root θερισμός.