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Plural of Mongoose

The Quick Answer
The plural of mongoose is mongooses or mongeese.

The Plural of Mongoose

The plural of mongoose is mongooses or mongeese.
  • Mongooses live in southern Asia, Africa, and southern Europe.
  • Mongeese mostly feed on insects, crabs, earthworms, lizards, birds, and rodents.
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 mongoose
scythe
add s mongooses
scythes
Noun Ending s, sh, ch, x or z bus
dress
add es buses
dresses
Nouns ending [consonant] o mango
zero
tomato
add either s or es
(There are no rules for this - you have to know.)
mangoes or mangos
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 storey ()
donkey
add s storeys
donkeys
Nouns ending f or fe dwarf
knife
ves and/or s
(There are no rules - you have to know.)
dwarfs
knives
Exceptions mongoose
louse
some nouns undergo a vowel or letters change mongeese
lice
More exceptions salmon
sheep
some nouns do not change at all salmon
sheep

Why Is There Confusion over the Plural of Mongoose?

Confusion arises over the plural of mongoose because many believe that it should have the same ruling as the plural of goose.

Both mongooses and mongeese are acceptable. Of note, mongooses is by far the more common plural. (See the evidence in Google's Ngram Viewer.)