Actually, there are very few nouns ending in “o” that need an es to make them plural, and you can just memorize them. Here is a list of nouns ending in -o which are spelled -oes in the plural: List of nouns spelled -oes in the plural: Singular: Plural: one potato: two potatoes: one tomato: two tomatoes: one hero: two heroes: one domino: two dominoes: an echo: two, several echoes: Singular -o, plural -os. The most common are potatoes, echoes, heroes, torpedoes, vetoes, and embargoes. Studyladder is an online english literacy & mathematics learning tool. Many words ending in O are now listed with two spellings of the plural in contemporary dictionaries, especially newer words. The plural of words ending in -o (409 results) The suffix -s will be added to: a) those nouns whose final -o is precedeed by a vowel: eg. Found 24869 words that end in o. Browse our Scrabble Word Finder, Words With Friends cheat dictionary, and WordHub word solver to find words that end with o. focus – foci. Both of the following are correct: volcanoes. cactus – cacti. Nouns ending in -o can add either -s or -es in the plural, and some can be spelled either way. Add “es” to make the plurals: Add “s” to make the plurals: example: * To make a plural of a noun ending in “o” that is preceded by a consonant, add “es”. Here are some rules: 1) Nouns ending in -o get either -s or -es when turned in the plural. The plural of words ending in -o. 47. With the unique word volcano, you can apply the standard pluralization for words that end in -o or not. Or use our Unscramble word solver to find your best possible play! @Laure From CGEL, p.1586: "Plurals with 's: An apostrophe may be used to separate the plural suffix from the base with letters, numbers (notably dates), symbols, abbreviations, and words used metalinguistically: (i) p's and q's, 1960's, &'s, Ph.D.'s, if's and but's (ii) She got four A's and two B's. Kids activity games, worksheets and lesson plans for Primary and Junior High School students in United States. Plural Nouns: Words Ending in "o" By SWTC Communication Department. It’s your choice! bamboo-bamboos cuckoo-cuckoos embryo-embryos kangoroo-kangoroos radio-radios studio-studios scenario-scenarios cameo-cameos, etc. Plurals - words ending in “o” pota o echo hero tomato torpedo Exceptions: Just add “s” photo piano + es = potato I peeled the potatoes. volcanos. 2. Domino game. memo solo zero 8 If the singular noun ends in ‑us, the plural ending is frequently ‑i. Plurals Worksheets English Grammar Worksheets Reading Comprehension Worksheets Learn English Grammar English Vocabulary Words Grammar Lessons English Language Learning English Lessons Teaching English. The variation is pretty understandable, I think. Article by iSLCollective. The plurals of most nouns ending in an "o" that's preceded by a consonant are formed by adding "es". Plurals ending in o. 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