The Plural of KnifeThe plural of knife is knives.
- Great knives will enable you to cut precisely. Knife skills are essential in cooking. (Eric Ripert)
- I've had people turn up to book signings with knives and guns. (Patricia Cornwell)
|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|| hero
|add either s or es
(There are no rules for this - you have to know.)
|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 Knife?There is confusion because the rule for forming plurals with nouns ending in f or fe isn't straightforward. Most nouns will drop the f or fe and gain a ves. For example:
- Wife becomes wives.
- Leaf becomes leaves.
- Safe becomes safes.
- Chief becomes chiefs.
- Scarf becomes scarfs or scarves.
- Dwarf becomes dwarfs or dwarves.