slam
1 Americanverb (used with or without object)
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to shut with force and noise.
to slam the door.
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to dash, strike, knock, thrust, throw, slap down, etc., with violent and noisy impact.
He slammed his books upon the table.
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Informal. to criticize harshly; attack verbally.
He slammed my taste mercilessly.
noun
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a violent and noisy closing, dashing, or impact.
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the noise so made.
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Slang. Usually the slam slammer.
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Informal. a harsh criticism; verbal attack.
I am sick of your slams.
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Informal.
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Also called poetry slam. a competitive, usually boisterous poetry reading.
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a usually competitive performance involving multiple performers with short acts: a tap dance slam.
puppet slams;
a tap dance slam.
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noun
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the winning or bidding of all the tricks or all the tricks but one in a deal.
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an old type of card game associated with ruff.
verb
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to cause (a door or window) to close noisily and with force or (of a door, etc) to close in this way
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(tr) to throw (something) down noisily and violently
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slang (tr) to criticize harshly
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informal (intr; usually foll by into or out of) to go (into or out of a room, etc) in violent haste or anger
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(tr) to strike with violent force
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informal (tr) to defeat easily
noun
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the act or noise of slamming
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slang harsh criticism or abuse
noun
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the winning of all (grand slam) or all but one (little slam or small slam) of the 13 tricks at bridge or whist
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the bid to do so in bridge See grand slam little slam
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an old card game
noun
Other Word Forms
Derived Forms
Inflected Forms
Participles
Conjugated Forms
Present
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slamsimple
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slamssimple
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have slammedperfect
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has slammedperfect
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am slammingprogressive
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are slammingprogressive
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is slammingprogressive
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have been slammingperfect progressive
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has been slammingperfect progressive
Past
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slammedsimple
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had slammedperfect
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was slammingprogressive
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were slammingprogressive
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had been slammingperfect progressive
Future
Etymology
Origin of slam1
First recorded in 1650–60; perhaps from Scandinavian; compare Icelandic, Norwegian, Swedish slamra “to bang (a door), slam”
Origin of slam2
First recorded in 1660–70; perhaps special use of slam 1
Explanation
To slam is to close something forcefully and loudly, like when you slam your door angrily, or slam the freezer door quickly so your sister won't see the ice cream sandwiches you bought. If you slam your finger in the door, it's going to hurt. And, if you slam your backpack onto the table, you may damage your laptop. The word slam implies violence and force. As a noun, a slam is the action or sound of slamming something. There's also a "poetry slam," when poets compete by reciting their work in front of an audience, and slam-dancing, also known as moshing, in which dancers slam into each other.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
As they rotate, their powerful magnetic fields accelerate charged particles that slam into the expanding debris from the supernova, injecting extra energy that keeps the explosion shining much longer than expected.
From Science Daily • Jul. 6, 2026
The Celtics were all-out on another championship chase, having built a 3-1 series lead, when they lost three straight games to see their playoff run slam into a brick wall.
From The Wall Street Journal • Jul. 3, 2026
Former SNP minister Kate Forbes has claimed that she was viewed as a "slam dunk" for the party leadership until she revealed her views on gay marriage.
From BBC • Jul. 2, 2026
“Every aspect of this has to be closely examined, and done so from a position, frankly, of humility, realizing that it’s not a slam dunk,” she said.
From Los Angeles Times • Jun. 29, 2026
Was it rude to slam the door in someone’s face?
From "Willodeen" by Katherine Applegate
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
