Meaning

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

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

• The act of using a hammer to hit something}}

  "The nail is too loose - give it a hammer."

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

• The malleus, a small bone of the middle ear.

• In a piano or dulcimer, a piece of wood covered in felt that strikes the string.

  "The sound the piano makes comes from the hammers striking the strings"

• A device made of a heavy steel ball attached to a length of wire, and used for throwing.

• The last stone in an end.

• (frisbee) A frisbee throwing style in which the disc is held upside-down with a forehand grip and thrown above the head.

• Part of a clock that strikes upon a bell to indicate the hour.

• One who, or that which, smites or shatters.

  "St. Augustine was the hammer of heresies."

Meaning

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

  "Tony hammered on the door to try to get him to open."

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

• To emphasize a point repeatedly.

• To hit particularly hard.

• To ride very fast.

• To strike internally, as if hit by a hammer.

  "I could hear the engine’s valves hammering once the timing rod was thrown."

• To defeat (a person, a team) resoundingly

  "We hammered them 5-0!"

• To make high demands on (a system or service).

• To declare (a person) a defaulter on the stock exchange.

• To beat down the price of (a stock), or depress (a market).

• To have hard sex with

  "Daniel hammered Mary til he came."