A Klingon Bat'leth is a swordlike weapon. What makes it different from a sword is the fact that it is used horizontally instead of vertically. Like a regular sword it has a very long blade and a long handle. With the Bat'leth you can supposedly hack and slash (possibly even use it to send your target flying). But opposed to the Klingon Bat'leth you can also use martial arts to attack your target as said in the article talking about ground weapons.