buck

buck — noun

1. an informal word for one dollar.

1.nounB1
Definition

an informal word for one dollar.

Example

Ravi found a buck under the sofa and bought a bus ticket.

a buck = one dollar

At the yard sale, each comic book cost only one buck.

one buck after a price

Common collocations
  • a buck
  • one buck
  • five bucks
  • a buck each
Synonyms
  • dollar

    the neutral standard word in speech and writing

  • greenback

    a more playful or old-fashioned American word, especially for paper money

  • one-dollar bill

    names the paper note itself rather than the money unit in general

Grammar Patterns

a buck

number + bucks

a buck each

Usage Note

Usually follows a number or price in casual speech. Distinguish from noun/2 and noun/3: this sense refers to dollars, not rupees or rand.

Common Mistakes

The sandwich cost five buck.
The sandwich cost five bucks.
Use the plural form after numbers above one.

2. money, or a chance to get a lot of it, in set informal expressions.

2.nounB2
Definition

money, or a chance to get a lot of it, in set informal expressions.

Example

Investors came hoping to make a quick buck from the phone app.

make a quick buck

The new printer gives small offices more bang for their buck.

more bang for your buck

Common collocations
  • make a quick buck
  • the big bucks
  • more bang for your buck
  • earn a buck
Synonyms
  • money

    the broad neutral word

  • cash

    focuses on money in notes and coins, not on profit

  • profit

    more formal and tied to money gained from business

Antonyms
  • loss

    money that is lost instead of gained

Grammar Patterns

make a quick buck

bring in the big bucks

more bang for your buck

Usage Note

Usually appears in fixed phrases rather than as a simple price word. Distinguish from noun/1, noun/2, and noun/3: those senses name one unit of currency, while this sense often means money more generally.

Common Mistakes

The tablet cost two quick bucks.
The tablet cost two bucks.' / 'They wanted to make a quick buck.
Quick buck belongs in a fixed phrase about earning money, not naming a price.

3. a male deer, rabbit, or similar animal; in South Africa, it can also mean an ant

3.nounB2
Definition

a male deer, rabbit, or similar animal; in South Africa, it can also mean an antelope or deer of either sex.

Example

At dawn, a buck stepped out of the trees near the lake.

buck = male deer

The children watched a young buck chase another deer across the field.

young buck

Common collocations
  • young buck
  • buck rabbit
  • a buck stepped out
Synonyms
  • stag

    usually refers specifically to an adult male deer

  • male

    a broader biological term, not a species word

  • antelope

    fits the South African use but does not itself mark sex

Antonyms
  • doe

    the usual word for a female deer or rabbit

Grammar Patterns

a buck

young buck

buck + animal noun

Usage Note

Most often names a male deer or rabbit. In South African use, it can refer more broadly to antelope and may not mark sex in the same way.

Common Mistakes

The doe lowered his head and ran.
The buck lowered his head and ran.
A buck is male, while a doe is female.

4. an informal word for one rupee.

4.nounC2
Definition

an informal word for one rupee.

Example

In Mumbai, a paper cup of tea cost ten bucks.

number + bucks

Meera found a buck beside the fruit stand in Jaipur.

a buck = one rupee

Common collocations
  • a buck
  • ten bucks
  • twenty bucks
Synonyms
  • rupee

    the neutral standard name of the currency

Grammar Patterns

a buck

number + bucks

Usage Note

This sense appears in Indian contexts. Distinguish from noun/1 and noun/3 by the local currency named in the situation.

5. an informal word for one rand.

5.nounC2
Definition

an informal word for one rand.

Example

In Cape Town, the driver asked for twenty bucks in cash.

number + bucks

At the Durban market, oranges sold for a buck each on Sunday.

a buck each

Common collocations
  • a buck
  • twenty bucks
  • a few bucks
Synonyms
  • rand

    the neutral standard name of the currency

Grammar Patterns

a buck

number + bucks

Usage Note

This sense appears in South African contexts. Distinguish from noun/1 and noun/2 by the currency used in the place or setting.

6. a four-legged gym object that students run at and leap across.

6.nounC1
Definition

a four-legged gym object that students run at and leap across.

Example

The coach placed the buck in the middle of the gym.

place the buck

After warm-up, each student ran and jumped over the buck.

jump over the buck

Common collocations
  • jump over the buck
  • vaulting buck
  • gym buck
Synonyms
  • vaulting horse

    the more familiar modern term for similar equipment

  • horse

    shorter gym term that depends on context

Grammar Patterns

jump over the buck

place the buck

vaulting buck

Usage Note

Used mainly in gymnastics, especially older or technical descriptions of vaulting equipment. Modern learners may also meet horse or vaulting horse for a similar object.

Idioms

The value you get in relation to the money or effort you spend.

Mia got great bang for her buck with that cheap laptop.

Does this gym membership give you enough bang for your buck?

To look or feel extremely attractive, healthy, or happy.

Sara looked like a million dollars in her new dress.

After a good night's sleep, Diego felt like a million bucks.

To earn money quickly and with little effort.

Brian tried to make a quick buck by selling fake watches.

Are you in this business to make a fast buck or build a career?

buck — verb

Synonym discussion

Sense: noun/1

Buck is an informal everyday word for one dollar, especially in speech about small prices or simple amounts: five bucks, twenty bucks. Dollar is the neutral word and works everywhere, including writing, school, and official prices. Greenback is more American in tone and often sounds old-fashioned or playful; it usually makes people think of US paper money. Bill names the note itself, so a one-dollar bill is the piece of paper, not the value in general. Cash is broader than all of these, because it means money in notes or coins, not specifically one dollar. Say The ticket was ten bucks in conversation, but The ticket cost ten dollars in formal writing.

dollargreenbackbillcash

Etymology

Proto-GermanicOld EnglishEnglish

The oldest English sense of buck named a male deer or goat and comes from Old English bucca. The verb for a horse jumping and kicking grew from that animal idea. The money sense is much newer and is usually connected with buckskin, because deer skins were used as trade goods in early North America.