1) business, employment, that which any one is occupied
1a) that which one undertakes to do, enterprise, undertaking
2) any product whatever, any thing accomplished by hand, art, industry, or mind
3) an act, deed, thing done: the idea of working is emphasised in opp. to that which is less than work
Part of Speech: noun neuter
Citing in TDNT: 2:635, 251
From ἔργω ergô (a primary but obsolete word; to work); toil (as an effort or occupation); by implication an act: - deed, doing, labour, work.
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 ἔργον; click on the second column to search for that grammatical form of the root ἔργον; click on the third column to search for that word and grammatical form; click on the total to search for the root ἔργον.