Singular & Plural Noun Converter
Convert English nouns between singular and plural, with the grammar rule behind each change
Convert English nouns from singular to plural and back, and see exactly which grammar rule applies to each word. Irregular nouns and nouns that don't change form are handled correctly, so it works as both a quick reference and a learning aid.
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How to use
- Enter the English nouns you want to convert (one per line or separated by commas).
- Review the singular/plural table for each word along with the rule type detected in real time.
- Use the copy button in the top right to pull the results out.
FAQ
- Does it handle exceptions like "fish" and "sheep"?
- Yes. The tool includes built-in lists of invariant nouns (where singular and plural are identical) and irregular forms such as man-men and datum-data, so those words are identified correctly instead of getting an -s tacked on.
- If I paste in a whole sentence, will it pick out just the nouns?
- No, this tool is designed to take individual noun words as input. Pasting a full sentence can cause it to try converting verbs or adjectives too, giving inaccurate results — it's best to list only noun words, separated by line breaks or commas.
- If I paste in a whole sentence, will it pick out just the nouns?
- No, this tool is designed to take individual noun words as input. Pasting a full sentence can cause it to try converting verbs or adjectives too, giving inaccurate results — it's best to list only noun words, separated by line breaks or commas.