1) a pale or stake, a palisade
2) a palisade or rampart
2a) pales between which earth, stones, trees, and timbers are heaped and packed together
Part of Speech: noun masculine
From "charasso" (to sharpen to a point; akin to G1125 through the idea of scratching); a stake, that is, (by implication) a palisade or rampart (millitary mound for circumvallation in a siege): - trench.
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 χάραξ; click on the second column to search for that grammatical form of the root χάραξ; click on the third column to search for that word and grammatical form; click on the total to search for the root χάραξ.