The Plural of DominoThe plural of domino is dominoes or dominos.
- European-style dominoes are traditionally made of ivory.
- Dominos is played at a professional level, similar to poker.
|Type||Example of Type||Forming the Plural||Plural|
|Most Nouns|| lamp
|add s|| lamps
|Noun Ending s, sh, ch, x or z|| bus
|add es|| buses
|Nouns ending [consonant] o|| domino
|add either s or es
(There are no rules for this - you have to know.)
| dominoes or dominos
|Nouns ending [vowel] o|| patio
|add s|| patios
|Nouns ending [consonant] y|| story
|change the y to an i and add es|| stories
|Nouns ending [vowel] y|| storey ()
|add s|| storeys
|Nouns ending f or fe|| dwarf
|ves and/or s
(There are no rules - you have to know.)
|some nouns undergo a vowel or letters change||
|More exceptions|| salmon
|some nouns do not change at all|| salmon
Why Is There Confusion over the Plural of Domino?There is confusion because the rule for forming plurals with nouns ending in o isn't straightforward. Most nouns will just add an s. For example:
- Kangaroo becomes kangaroos.
- Piano becomes pianos.
- Tomato becomes tomatoes.
- Potato becomes potatoes.
- Flamingo becomes flamingoes or flamingos.
- Echo becomes echoes or echos.
Though dominos and dominoes are both accepted plurals, dominoes is the more common of the two. (See the difference in Google's Ngram Viewer.)
Don't Use an Apostrophe to Form a PluralAdding 's is never an option when forming the plural of a noun. Despite this simple rule, inexperienced writers often feel compelled to add an apostrophe, especially when the noun ends with a vowel (e.g., piano, tomato, emu). For example:
- The piano's were expensive.
- The pianos were expensive.
Read more about using apostrophes.