Dictionary.com
Thesaurus.com
Synonyms

ambush

American  
[am-boosh] / ˈæm bʊʃ /

noun

ambushes plural
  1. an act or instance of lying concealed so as to attack by surprise.

    The highwaymen waited in ambush near the road.

  2. an act or instance of attacking unexpectedly from a concealed position.

  3. the concealed position itself.

    They fired from ambush.

  4. those who attack suddenly and unexpectedly from a concealed position.


verb (used with object)

ambushes, present (3rd person singular) ambushed, past participle, past ambushing present participle
  1. to attack from ambush.

ambush British  
/ ˈæmbʊʃ /

noun

  1. the act of waiting in a concealed position in order to launch a surprise attack

  2. a surprise attack from such a position

  3. the concealed position from which such an attack is launched

  4. the person or persons waiting to launch such an attack

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to lie in wait (for)

  2. (tr) to attack suddenly from a concealed position

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of ambush

1250–1300; (v.) Middle English enbuss ( h ) en < Middle French embuschier to place men in ambush, literally, to set in the woods, equivalent to em- im- 1 + busch- (< Vulgar Latin *busca wood, forest < Germanic *busk- heavy stick) + -ier infinitive suffix; (noun) earlier enbusshe < Middle French embusche, derivative of the v.

Explanation

An ambush is a sneak attack. To ambush your enemy, hide and wait for him to come near and then pounce on him. In war or in backyards, an ambush is a great way to surprise someone. Ambush comes from a Latin word meaning “to place in a wood,” and hiding in the woods behind a tree is a classic starting point for an ambush. The actual attack is called an ambush, but ambush is also a verb, so you can ambush your mom by dropping water balloons on her head from a tree. Please don’t tell her where you got that idea.

Keep Reading on Vocabulary.com

Vocabulary lists containing ambush

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.

See Examples For:

Here, though, it suffered a second ambush before eventually being able to reunite with the convoy.

From BBC May 24, 2026

Czesław is an ethnic Pole in the Red Army who escaped a ruthless German ambush.

From The Wall Street Journal May 22, 2026

Given its massive build, the snake was likely slow-moving and relied on ambush tactics, similar to modern anacondas.

From Science Daily Apr. 29, 2026

ADEN, Yemen — The ambush spot was good: Single-lane street, just enough space to overtake.

From Los Angeles Times Mar. 30, 2026

Taking me to a therapist’s office without telling me was basically an act of guerrilla warfare, and I promised myself right then that I’m never going to do this ambush stuff to my kids.

From "The Science of Breakable Things" by Tae Keller

AFP spoke to his former business partner, ex-major Omar Rodriguez, who said that after a few desert ambushes last year, Quijano "paused" the operation.

From Barron's Dec. 21, 2025

The “What Not To Wear” system involved secret footage, ambushes, a “360 degree mirror” in which the subject was required to explain her old wardrobe, soon to be discarded forever.

From Los Angeles Times Apr. 28, 2025

The airline sets cheap rates but ambushes customers with pesky little fees for every single facet of the flying experience, a nickel-and-diming scheme that bends not even for that glass of water.

From Slate Oct. 15, 2024

"There is only one thing that will save that park and that is if they start running intel, set up ambushes and make arrests. Otherwise nothing is going to change," she told the BBC.

From BBC Feb. 27, 2024

Alexa runs down the stairs and ambushes me with a giant hug, too.

From "The House That Lou Built" by Mae Respicio

Then Rushing again ambushed the first pitch — a knuckle curve on the inside edge — and drove it off the right-field wall.

From Los Angeles Times Jul. 7, 2026

In one foray, led by Miller, the small party of raiders was ambushed by 80 Spanish troops.

From The Wall Street Journal Apr. 17, 2026

“Flying through blizzard conditions, his squadron was ambushed by seven Soviet fighter planes.”

From Los Angeles Times Feb. 25, 2026

The DHS statement went on to say, "fearing for his life and safety as he was being ambushed by three individuals, the officer fired defensive shots".

From BBC Feb. 13, 2026

The whole planet was in a no-PvP zone, so I wasn’t worried about getting ambushed by the Sixers.

From "Ready Player One: A Novel" by Ernest Cline

The turtles mainly hunt by hiding under water and ambushing their prey, he said.

From BBC Jun. 9, 2026

We’ve all seen the appalling videos of masked agents ambushing and abducting these migrants in the halls of New York’s immigration court as they’re leaving a hearing.

From Slate Mar. 27, 2026

Signs of desperate hunger are growing as people resort to consuming animal feed or ambushing aid trucks.

From Seattle Times Mar. 16, 2024

Warnings of widespread hunger bordering on famine have become more urgent, and signs of desperation are growing as people resort to consuming animal feed or ambushing aid trucks.

From New York Times Mar. 9, 2024

By the time of the great Inca rebellion of 1536, the Incas had learned how best to defend themselves against cavalry, by ambushing and annihilating Spanish horsemen in narrow passes.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training