Strong's #2041: ergon (pronounced er'-gon)
 from a primary (but obsolete) ergo (to work); toil (as an effort or occupation); by implication, an act:--deed, doing, labour, work.
Thayer's Greek Lexicon:
 ̓́ 
 
  ergon 
 
 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
Relation: from a primary (but obsolete) ergo (to work)
  Citing in TDNT: 2:635, 251
 
Usage:
This word is used 176 times:
1 Timothy 5:10: "Well reported of for good  works; if she have brought up children, if she have lodged strangers,"
1 Timothy 5:10: "she have diligently followed every good  work."
1 Timothy 5:25: "also the good  works of some are manifest beforehand; and they that are"
1 Timothy 6:18: "that they be rich in good  works, ready to distribute, willing to communicate;"
2 Timothy 1:9: "not according to our  works, but according to his own purpose"
2 Timothy 2:21: "meet for the master's use, and prepared unto every good  work."
2 Timothy 3:17: "unto all good  works."
2 Timothy 4:5: "all things, endure afflictions, do  the work of an evangelist, make full proof of thy ministry."
2 Timothy 4:14: "him according to his  works:"
2 Timothy 4:18: "from every evil  work, and will preserve me unto his"
Titus 1:16: "that they know God; but  in works they deny him, being abominable, and"
Titus 1:16: "unto every good  work reprobate."
Titus 2:7: "thyself a pattern of good  works: in doctrine showing uncorruptness, gravity,"
Titus 2:14: "people, zealous of good  works."
Titus 3:1: "ready to every good  work,"
Titus 3:5: "Not by  works of righteousness which we have done,"
Titus 3:8: "might be careful to maintain good  works. These things are good and"
Titus 3:14: "learn to maintain good  works for necessary uses, that"
Hebrews 1:10: "the heavens are  the works of thine hands:"
Hebrews 2:7: "didst set him over the  works of thy hands:"
Hebrews 3:9: "and saw my  works forty years."
Hebrews 4:3: "rest: although the  works were finished from the foundation of the world."
Hebrews 4:4: "from all his  works."
Hebrews 4:10: "hath ceased from his own  works, as God did from his."
Hebrews 6:1: "of repentance from dead  works, and of faith toward God,"
Hebrews 6:10: "unrighteous to forget your  work and labor of love, which"
Hebrews 9:14: "conscience from dead  works to serve the living God?"
Hebrews 10:24: "to provoke unto love and to good  works:"
Hebrews 13:21: "Make you perfect in every good  work to do his will,"
James 1:4: "let patience have her perfect  work, that ye may be perfect and"
James 1:25: "hearer, but a doer  of the work, this man shall be blessed in"
James 2:14: "and have not  works? can faith save"
James 2:17: "if it hath not  works, is dead, being alone."
James 2:18: "faith, and I have  works: show me thy faith"
James 2:18: "faith without thy  works, and I will show thee my"
James 2:18: "faith by my  works."
James 2:20: "that faith without  works is dead?"
James 2:21: "father justified by  works, when he had offered Isaac his son"
James 2:22: "faith wrought with his  works, and by works was faith"
James 2:22: "works, and by  works was faith made perfect?"
James 2:24: "then how that by  works a man is justified, and not"
James 2:25: "harlot justified by  works, when she had received the messengers, and"
James 2:26: "so faith without  works is dead also."
James 3:13: "a good conversation his  works with meekness of wisdom."
1 Peter 1:17: "who without respect of persons judgeth according to every man's  work, pass the time"
1 Peter 2:12: "as evildoers, they may by your good  works, which they shall behold, glorify God"
2 Peter 2:8: "to day with their unlawful  deeds);"
2 Peter 3:10: "also and the  works that are therein shall be burned up."
1 John 3:8: "that he might destroy the  works of the devil."
1 John 3:12: "slew he him? Because his own  works were evil, and"