Pluralising words ending in ‘o’ 10 Jun 2013

In our English lesson today we were looking at an explanation text about volcanoes which lead us to investigate the spelling rules of nouns ending in ‘o’.

ends in oes ends in os
volcanoes tacos
potatoes doritos
tomatoes sombreros
echoes radios
heroes photos

We noticed that some words ending in ‘o’ need to have an ‘es’ added to pluralise them, whereas some words just end in ‘s’.

We we wondered why and investigated further. Mrs Jones found this great website which explains perfectly!