Category:English nouns with irregular plurals

This category lists English nouns whose plural is formed irregularly with respect to spelling: It includes the singulars of all English nouns except those that:

• are symbols or letters and form their plural by adding -s or -’s
• are not proper nouns, end in a consonant + y, and form their plural by replacing the -y with -ies
• end in a sibilant (one of [s], [ʃ], [z], [ʒ]) and have plural ending -es
• do not fall under any of the three cases above and form their plural by adding -s

For the plural forms themselves see Category:English irregular plurals.