Singular Nouns
Singularity is a grammatical number distinction. Regular count nouns contrast singular and plural forms, but mass nouns, irregular plurals, singular-only nouns, and nouns ending in -s show why spelling alone is not a safe test.
A singular noun normally refers to one countable person, place, thing, or concept, or uses a noun form that grammatically takes singular agreement. Do not identify singular nouns only by the absence of final -s.
Key details
Important caveats
Boundary
Irregular nouns and nouns ending in -s can break the simplest visual pattern, so check established usage.
Further guidance
Contrast
Regular count nouns often contrast one item with multiple items, while mass or singular-only nouns behave differently.
Diagnostic
Use meaning, determiner pattern, dictionary information, and agreement rather than simply looking for final -s.
Worked Example
“This analysis is complete” uses a singular noun despite the final -s; “these analyses are complete” shows the irregular plural.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- Nouns: form (opens in a new tab)Cambridge University Press · Defines singular nouns as referring to one person, animal or thing and contrasts singular/plural forms and agreement.
- Nouns: singular and plural (opens in a new tab)Cambridge University Press · Explains nouns with singular-only and plural-only behavior and exceptions that prevent an oversimplified regular-plural treatment.