Plural of Monkey

The Plural of Monkey

The plural of "monkey" is "monkeys."

• We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special. (Theoretical physicist Stephen Hawking)
• If you could cross a lion and a monkey, that's what I'd be, because monkeys are funny and lions are strong. (Actor Marlon Wayans)

The noun "monkey" adheres to the standard rules for forming the plurals of nouns in English (shown in the table below).

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The Standard Rules for Forming the Plurals

The table below shows the standard rules for forming the plurals of nouns in English.

Type	Example of Type	Forming the Plural	Plural
Most Nouns	lamp scythe	add s	lamps scythes
Noun Ending s, sh, ch, x or z	bus dress	add es	buses dresses
Nouns ending [consonant] o	hero zero tomato	add either s or es (There are no rules for this - you have to know.)	heroes zeros tomatoes
Nouns ending [vowel] o	patio ratio	add s	patios ratios
Nouns ending [consonant] y	story penny	change the y to an i and add es	stories pennies
Nouns ending [vowel] y	monkey chimney	add s	monkeys chimneys
Nouns ending f or fe	dwarf hoof	ves and/or s (There are no rules - you have to know.)	dwarfs hooves or hoofs
Exceptions	man louse	some nouns undergo a vowel or letters change	men lice
More exceptions	salmon sheep	some nouns do not change at all	salmon sheep

Read more about English spelling rules.

Why Is There Confusion over the Plural of Monkey?

"Monkeys" is the only way to make the noun "monkey" plural.

Confusion arises because some people mistakenly believe that all nouns ending in "y" should form a plural ending in "ies". When a noun ends with [vowel] + y, you only need to add an "s" to form the plural.