1) to conquer
1a) to carry off the victory, come off victorious
1a1) of Christ, victorious over all His foes
1a2) of Christians, that hold fast their faith even unto death against the power of their foes, and temptations and persecutions
1a3) when one is arraigned or goes to law, to win the case, maintain one's cause
Part of Speech: verb
Citing in TDNT: 4:942, 634
From G3529; to subdue (literally or figuratively): - conquer, overcome, prevail, get the victory.
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 νικάω; click on the second column to search for that grammatical form of the root νικάω; click on the third column to search for that word and grammatical form; click on the total to search for the root νικάω.