noun

1. A tool with a heavy head and a handle used for pounding.

   “Bobby used a hammer and nails to fix the two planks together”

2. The act of using a hammer to hit something}}

   “The nail is too loose - give it a hammer.”

3. A moving part of a firearm that strikes the firing pin to discharge a gun.

verb

1. To strike repeatedly with a hammer, some other implement, the fist, etc.

   “Tony hammered on the door to try to get him to open.”

2. To form or forge with a hammer; to shape by beating.

3. To emphasize a point repeatedly.

Synonyms: pound