Coin vs Penny

When to use each in English, with meaning, register, and examples.

Coin

Top 1,000 (very common)B1noun

Penny

Top 1,000 (very common)A2noun
 CoinPenny
Pronunciation🇬🇧 /["/kɔɪn/"]/🇺🇸 /["/kɔɪn/"]/🇬🇧 /["/ˈpeni/","/pens/"]/🇺🇸 /["/ˈpeni/","/pens/"]/
MeaningA small, round piece of metal used as money.A small coin worth one cent.
ExampleI found a coin on the sidewalk while walking to work.I found a penny on the street today.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 1,000 (very common)
CEFR levelB1A2
Part of speechnounnoun
Collocationsbronze, copper, gold, issue, mint, strike, be in circulation, circulate, clink, purse, collector, flip, the flip of a coin, the toss of a coinpenny for your thoughts, penny saved is a penny earned, penny arcade
Antonymsnote, paper moneydollar, pound, euro
Common mistakesConfused with 'quoin', which means a corner or edge., Using 'coins' as a verb instead of 'to coin'., Mixing up 'coin' with 'Token' in non-monetary contexts.Confused with 'pennies' when referring to multiple coins., Mistakenly using 'penny' for amounts larger than one cent., Neglecting to recognize 'penny' as a countable noun.
Usage notesUsed in everyday conversation, 'coin' is appropriate in both spoken and written contexts when discussing money or currency. Avoid using in very formal financial contexts where terminology is more technical.Often used in everyday conversation to refer to small amounts of money. It is informal to use 'penny' in business contexts, where 'cent' may be more appropriate.

Frequently asked questions: Coin vs Penny

What's the difference between Coin and Penny?

Coin: A small, round piece of metal used as money. Penny: A small coin worth one cent.

Which is more advanced: Coin and Penny?

Coin is the highest level, at B1, on the CEFR scale.

Are Coin and Penny the same CEFR level?

Coin: B1, Penny: A2 on the CEFR scale.

What part of speech are Coin and Penny?

Coin: noun, Penny: noun.

Can you show an example of each?

Coin: I found a coin on the sidewalk while walking to work. Penny: I found a penny on the street today.

Can I use Coin and Penny interchangeably?

Not always. Coin and Penny are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons