1. To bring down (the foot) forcibly.
2. To bring the foot down onto (an object or surface) forcibly.
3. To extinguish or destroy by or as if by trampling underfoot: stamped the rebellion; stamp out a fire.
4. To crush or grind with a heavy instrument: stamp ore.
5. To form or cut out by application of a mold, form, or die.
6. To imprint or impress with a mark, design, or seal.
7. To impress forcibly or permanently.
8. To affix an adhesive stamp to.
9. To identify, characterize, or reveal: stamped her a traitor to the cause.

1. To thrust the foot forcibly downward.
2. To walk with forcible, heavy steps. See Usage Note at stomp.

1. The act of stamping.
2. 1. An implement or device used to impress, cut out, or shape something to which it is applied.
   2. An impression or shape formed by such an implement or device. See synonyms at impression.
3. An official mark, design, or seal that indicates ownership, approval, completion, or the payment of a tax.
4. 1. A small piece of gummed paper sold by a government for attachment to an article that is to be mailed; a postage stamp.
   2. A similar piece of gummed paper issued for a specific purpose: trading stamps.
5. An identifying or characterizing mark or impression: His work bears the stamp of genius.
6. Characteristic nature or quality: a person of her stamp.

[Middle English stampen, possibly alteration of Old English stempan, to pound in a mortar.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.