Handbook of Style Plurals

Capitalization Index   Documentation of Sources

The plurals of English words are regularly formed by the addition of the suffix -s or -es to the singular, as
< dog -> dogs >
< grass -> grasses >
< race -> races >
< dish -> dishes >
< guy -> guys >
< buzz -> buzzes >
< monarch -> monarchs >
< branch -> branches >

The plurals of words that follow other patterns, as
< army -> armies >
< phenomenon -> phenomena >
< duo -> duos >
< libretto -> librettos or libret >
< ox -> oxen >
< curriculum -> curricula also curriculums >
< foot -> feet  >
< alga -> algae >
< p. -> pp. >
< corpus delicti -> corpora delic >
< sheep -> sheep >
< sergeant major -> sergeants major or sergeant majors >
are given at the appropriate vocabulary entries in the main body of the dictionary.

Additional information on the treatment of plurals in this dictionary may be found in the Explanatory Notes section of the front matter.