Idiom B2

A dime a dozen

Very common and of little value — easy to find and not particularly special

Meaning

A dime a dozen — Something that is very common, easy to find, and therefore of little value or special significance. Used to dismiss something or someone that may appear impressive but is actually far from rare. Literal: twelve items (a dozen) sold for ten cents (a dime) — an extremely cheap price. Figurative: so common and plentiful that it has little worth or distinction.

Origin & History

The idiom comes from American English and the world of 19th-century commerce. A dime (ten cents) is one of the smallest US coins. In the 1800s, market traders would advertise cheap, plentiful goods at prices like twelve for a dime — an extremely low unit price that emphasised the product's abundance and lack of scarcity. If you could get a dozen of something for just a dime, those things were clearly not rare or valuable.

The figurative use of a dime a dozen — meaning something is common to the point of being unremarkable — became established in American English by the late 19th and early 20th centuries. It spread widely through American popular culture including films, journalism, and literature. Today it is understood globally, though the closest British English equivalent is ten a penny or two a penny.

Example Sentences

SentenceContext
Self-proclaimed social media experts are a dime a dozen — what employers want is someone with a proven track record.Job market, value of experience vs. titles
Good ideas are a dime a dozen; what is rare is someone who can execute them.Business, entrepreneurship
Generic fantasy novels with chosen-one heroes are a dime a dozen — this one stands out.Literary criticism, standing out from the crowd
In this city, coffee shops are a dime a dozen, but a really great one is hard to find.Local market, quality vs. quantity

How to Use It

The idiom is used as a predicate adjective: [Subject] are/is a dime a dozen. It can also appear attributively: a dime-a-dozen idea. It always carries a slightly dismissive or deflating tone — it implies that something people may think is special is actually very common. It is informal and most natural in American English, though it is widely understood globally. The British equivalent is ten a penny.

Common Mistakes

Mistakes to Avoid

Her talent is a dime a dozen — she is really exceptional.

Her talent is rare and exceptional. — 'A dime a dozen' always means common and unremarkable; never use it to mean the opposite.

Those ideas are a dozen a dime.

Those ideas are a dime a dozen. — The fixed order is 'a dime a dozen'; never reverse it to 'a dozen a dime'.

Programmers used to be a dime a dozen, but now they are expensive.

Programmers used to be a dime a dozen, but skilled ones are now in high demand. — Be precise about what is common: the idiom should apply to the specific thing that is plentiful, not overgeneralise a group.

Similar Idioms

The tip of the iceberg Once in a blue moon You reap what you sow Give the benefit of the doubt All Idioms →

Practise This Idiom

Flash Cards Flip Tiles

Practice English Idioms

Use these exercises to master idioms in context:

Flip Tiles Find the Match Idioms Quiz

Frequently Asked Questions

What does "a dime a dozen" mean?
"A dime a dozen" means something is very common, easy to find, and therefore of little value or special significance. It is used to dismiss something that may appear impressive but is actually far from rare.
Where does "a dime a dozen" come from?
The idiom comes from American English. A dime (10 cents) is one of the smallest US coins. In the 19th century, market traders would sell cheap goods at twelve items for a dime — an extremely low price that emphasised abundance and lack of scarcity. The figurative meaning developed from this commercial image.
Can you give an example of "a dime a dozen" in a sentence?
"Self-proclaimed social media experts are a dime a dozen — what employers want is someone with a proven track record." Another: "Good ideas are a dime a dozen; what is rare is someone who can execute them."
Is "a dime a dozen" formal or informal?
It is informal. Common in everyday American English and widely understood globally. Avoid it in formal academic or professional writing, where 'commonplace', 'ubiquitous', or 'unremarkable' would be more appropriate.
What CEFR level is "a dime a dozen"?
B2. The American cultural reference (dime, dozen) may be unfamiliar to non-American learners, and the slightly sardonic dismissive tone adds nuance that upper-intermediate learners need to understand and use correctly.
What are common mistakes with "a dime a dozen"?
Common errors: using it positively (it always implies something is common and unremarkable); reversing the order to 'a dozen a dime' (not standard); and overgeneralising — apply it precisely to the specific thing that is plentiful.
Is "a dime a dozen" only used in American English?
It originated in American English and is most common there. British and other English speakers understand it, but in British English the closer equivalent is 'ten a penny' or 'two a penny'. Both expressions convey the same meaning.
What idioms are similar to "a dime a dozen"?
Similar expressions: 'ten a penny' (British English equivalent), 'two a penny' (another British variant), 'common as muck' (very common and unremarkable), and 'nothing special'. The opposite: 'once in a blue moon' (very rare) or 'one of a kind' (unique).
Can "a dime a dozen" be used in writing?
Yes, in informal and semi-formal writing such as blog posts, opinion pieces, and casual journalism. It adds a slightly sardonic, deflating tone when dismissing something that appears impressive but is actually very common.
How do I practise idioms like "a dime a dozen"?
Use LexFizz's Flash Cards and Flip Tiles to test yourself. Apply the idiom to something in your own field that you find overly common — write a sentence using 'a dime a dozen' about that thing, and contrast it with what is genuinely rare and valuable.