Monkies or Monkeys: Which Spelling Is Correct?

English spelling can be confusing, especially when it comes to forming plurals. A common question people ask is monkies or monkeys. If you’ve ever paused while writing about these playful primates, you’re not alone. Many English learners and native speakers alike wonder which spelling is correct and why.

In this guide, we’ll explain the spelling of monkey, reveal the correct plural form, discuss the grammar rule behind it, and provide examples to help you avoid this common mistake.

Monkies or Monkeys: The Quick Answer

The correct plural spelling is monkeys.

The spelling monkies is incorrect and should not be used in standard English.

Correct:

• One monkey
• Two monkeys

Incorrect:

• One monkey
• Two monkies

Whenever you’re referring to more than one monkey, monkeys is the proper choice.

What Is the Plural of Monkey?

If you’re wondering the plural of monkey is monkeys.

This follows a common English spelling rule for nouns ending in a vowel followed by the letter y.

Examples include:

• Monkey → Monkeys
• Donkey → Donkeys
• Turkey → Turkeys
• Valley → Valleys
• Key → Keys

Notice that the y remains unchanged, and you simply add -s.

Why Isn’t It Spelled “Monkies”?

The confusion comes from another English spelling rule.

When a noun ends in a consonant + y, you usually change y to ies.

Examples:

• Baby → Babies
• City → Cities
• Lady → Ladies
• Story → Stories

However, monkey ends with ey, where e is a vowel.

Because the y follows a vowel, you simply add s instead of changing the ending.

That’s why:

• Monkey → Monkeys ✔
• Monkies ✘

The Spelling of Monkey Explained

Understanding the spelling rule makes it much easier to remember.

Add “-s” After a Vowel + Y

Words ending in:

• ay
• ey
• oy
• uy

usually become plural by adding -s.

Examples:

Singular	Plural
Monkey	Monkeys
Donkey	Donkeys
Key	Keys
Boy	Boys
Toy	Toys

This pattern applies to many common English nouns.

Monkeys or Monkies in Sentences

Here are examples showing the correct usage.

Correct Examples

• The monkeys climbed from tree to tree.
• We watched several monkeys at the zoo.
• Scientists study monkeys to better understand primate behavior.
• The children loved feeding the monkeys during their visit.

Incorrect Examples

• The monkies were eating bananas.
• We saw three monkies at the wildlife park.

Replacing monkies with monkeys makes these sentences grammatically correct.

Common Plural Rules Similar to Monkey

Many English words follow the same pattern.

Add “-s”

• Monkey → Monkeys
• Key → Keys
• Donkey → Donkeys
• Toy → Toys
• Boy → Boys
• Day → Days

Change “-y” to “-ies”

• Baby → Babies
• Puppy → Puppies
• Family → Families
• Cherry → Cherries
• Country → Countries

The difference depends entirely on the letter before the y.

Tips for Remembering the Correct Spelling

If you’re unsure, these simple tricks can help.

Remember the Vowel Rule

Since monkey ends with ey, just add -s.

Compare It With “Key”

Nobody writes “keies.”

Similarly:

• Key → Keys
• Monkey → Monkeys

The pattern is exactly the same.

Let Spell Check Help

Modern grammar and spelling tools will recognize monkeys as correct and usually flag monkies as an error.

Common Mistakes to Avoid

Watch out for these frequent errors:

Incorrect

• Five monkies climbed the tree.
• The zoo has many monkies.
• Monkies are intelligent animals.

Correct

• Five monkeys climbed the tree.
• The zoo has many monkeys.
• Monkeys are intelligent animals.

Using the correct plural makes your writing clearer and more professional.

Frequently Asked Questions

Monkies or monkeys: Which is correct?

Monkeys is the correct spelling. Monkies is considered a misspelling in standard English.

What is the plural of monkey?

The plural of monkey is monkeys.

Why isn’t it spelled monkies?

Because monkey ends with a vowel (e) followed by y. According to English spelling rules, you simply add -s.

What is the spelling of monkey in the plural?

The correct plural spelling is monkeys.

Are there other words that follow the same rule?

Yes. Words such as donkey, key, toy, boy, and turkey all form their plurals by adding -s.

Is “monkies” ever acceptable?

No. Standard dictionaries, grammar guides, and style manuals recognize monkeys as the only correct plural spelling.

Conclusion

Choosing between monkies or monkeys is easy once you understand the grammar rule. Because monkey ends with a vowel followed by y, its plural is formed by simply adding -s, resulting in monkeys. The spelling monkies is incorrect and should be avoided in both formal and informal writing.

Learning this simple rule will also help you spell many other English words correctly. Whether you’re writing a school assignment, creating content, or simply improving your grammar, remembering that the plural of monkey is monkeys will keep your writing accurate and polished.