A heavy long-handled hammer used to drive stakes or wedges WordNet 3.0 & Open English WordNet

A sledgehammer is a tool with a large, flat, often metal head, attached to a long handle. Wikipedia

A large hammer Wikipedia Disambiguation

Large manual impact tool which has a metal head distinguishing it from a mallet with head made of softer material. Wikipedia Disambiguation

tool Wikidata

A heavy long-handled hammer, used for splitting logs by driving a wedge into them, or in combat. Wiktionary

Heavy, long-handled hammer. Wiktionary (translation)

A heavy, long handled maul or hammer used to drive stakes, wedges, etc. Wiktionary

A hammer that consists of a large, heavy, broad and flat block of metal (the head) attached to a handle typically 0.5 meter to 1 meter long. The sledgehammer's design is meant to allow it to be swung powerfully, and to distribute force over a wide area upon impact. Wiktionary

Kind of hammer. Wiktionary (translation)