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Spelling (Plurals for words ending in o) 01
These are tomatoes. They are not tomatos.

Spelling (Plurals for words ending in o) 01

Plurals with words ending in o can be confusing. Some add -es, others just -s. Learn patterns and common exceptions to spell confidently.

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Fascinating Fact:

Words from technology often take s. Photos, logos, and dynamos appear as simple s plurals.

In KS3 English, you review plural rules for words ending in -o. Many everyday nouns add -es (tomato to tomatoes), while others simply add -s (photo to photos). Learning the common patterns helps you choose the correct plural in essays and exam answers.

  • Singular: A word that names one item (for example, logo).
  • Plural: A word that names more than one (for example, logos or tomatoes).
  • Suffix: Letters added to the end of a word to change its form, such as -s or -es.

Practise these plurals and boost your score: Play our Spelling Game

When do words ending in -o take -es in the plural?

Many everyday nouns take -es, especially food and nature words, for example potato to potatoes and hero to heroes.

Which -o words usually take just -s?

Words from technology and abbreviations often take -s, such as photo to photos, video to videos, and logo to logos.

How can I remember tricky -o plurals for exams?

Make two short lists: common -es words and common -s words. Test yourself and use the forms in sentences to fix them in memory.

1 .
Select the correct spelling for the missing word.
He shouted, "help!", and his word returned in many .......
echo
echoes
echos
echows
Echo ends in -o and adds -es when plural
2 .
Select the correct spelling for the missing word.
There are two active ....... on the island.
volcano
volcanoe
volcanoes
volcanos
Adding -es to create a plural shows that there are exceptions to the basic rule that plurals are formed by simply adding an -s
3 .
Select the correct spelling for the missing word.
I'll take ten ripe ....... please.
tomato
tomatoe
tomatoes
tomatos
There are some exceptions to the rule of adding -es to make a noun ending in -o plural. For instance, the musical terms "piano", "duo" and "solo" are exceptions
4 .
Select the correct spelling for the missing word.
Large sacks of ....... are on offer today.
potato
potatoe
potatoes
potatos
Can you see the word "toes" at the end of "potatoes"? It would be amusing if the word "toes" were plural for "to"!
5 .
Select the correct spelling for the missing word.
The submarine launched two .......
torpedo
torpedoe
torpedoes
torpedos
Most words ending in -o require an -es to create a plural
6 .
Select the correct spelling for the missing word.
The winning athletes returned as triumphant .......
hero
heroe
heroes
heros
Remember the e!
7 .
Select the correct spelling for the missing word.
The fleet of ships were laden with their .......
cargo
cargoe
cargoes
cargoose
A "cargoose" is a diving bird. "Cargos" is also acceptable
8 .
Select the correct spelling for the missing word.
The ....... toppled over one after the other in a long line.
domino
dominoe
dominoes
dominus
Here are some exceptions to the rule that words ending in -o require an -es in the plural form: logos, gazebos, infernos, eskimos
9 .
Select the correct spelling for the missing word.
The orchestra needed three ....... for the trio.
piano
pianoe
pianoes
pianos
Tricky! Piano is an exception and adds only -s
10 .
Select the correct spelling for the missing word.
The actors sang several ....... in the school play.
solo
sloes
soloes
solos
Another exception, solo adds -s in plural. Musical terms (many of which are Italian in origin) do not generally follow the -es rule
You can find more about this topic by visiting BBC Bitesize - Spelling

Author:  Sue Daish (English Teacher, Principal Examiner & Published Author)

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