What is the plural of the word thief?
The plural form for the noun thief is thieves.
No, the plural form 'children' is an irregular plural noun (there is NO 's' at the end of the word). A regular plural noun is a word that is made plural by adding an 's' or an 'es' to the end of the word. An irregular plural is a word that is made plural in some other way. The word 'children' is the plural for for the singular noun 'child'. The plural is formed by…
It is actually somewhat arbitrary, but some nouns already has an -ieves form that has a different meaning. Examples of plural nouns: brief - briefs (which is also the verb) belief - beliefs (verb is believes) thief - thieves (which is also the verb) Note that relief and grief do not normally form plurals, but have -ieves verb forms.