1) to teach
1a) to hold discourse with others in order to instruct them, deliver didactic discourses
1b) to be a teacher
1c) to discharge the office of a teacher, conduct one's self as a teacher
2) to teach one
2a) to impart instruction
2b) instill doctrine into one
2c) the thing taught or enjoined
2d) to explain or expound a thing
2f) to teach one something
Part of Speech: verb
Citing in TDNT: 2:135, 161
A prolonged (causative) form of a primary verb δάω daô (to learn); to teach (in the same broad application): - teach.
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 διδάσκω; click on the second column to search for that grammatical form of the root διδάσκω; click on the third column to search for that word and grammatical form; click on the total to search for the root διδάσκω.