plural nouns
English nouns that are countable can be plural or singular (mention one or more than one of that thing, person object). Nouns will look different (i.e., use other spelling) based on whether they’re being used as a singular or plural.
Regular nouns will simply add “s” or “es”. Irregular nouns end in something other than “s” or “es”. While this sounds simple enough, because of the amount of nouns there are in English, and the number of irregular noun forms that exist, learning the correct spelling can be difficult.
Discover our archive of guides covering all of English’s irregular noun forms, like the plural of crisis, or diagnosis. Also, the plurals of animals like moose, sheep and deer. Find the answers to your questions on plural nouns, and send us a message if there’s a question you have which hasn’t yet been answered!
Irregular Plural Nouns
A list of all irregular plural noun form in the English language, for you convenience and ease of reference.
What’s the Plural of Axis?
Axis plural is axes (not to be mistaken for the woodsman’s tool, albeit spelled the same.)
What’s the Plural of Hypothesis?
The plural of hypothesis is hypotheses. Hypothesis is the singular noun form.
What’s the Plural of Synopsis?
Synopsis as a plural is synopses (pronounced like sin-ops-ease). Synopsis is a singular noun.
What’s the Plural of Basis?
Basis originates from the Greek word of the same spelling, basis, meaning “that whereon one stands”. The plural of basis is bases (pronounced base-ease).
