Pluraler

French singular-to-plural converter with handling of regular and irregular forms, including compound words, special endings, and invariable nouns.

Enter a singular French word:

French Plural Formation Rules

French nouns and adjectives typically form plurals by adding -s, but the language has numerous specific patterns and exceptions.

Many words follow special rules based on their singular endings, while others have completely irregular forms inherited from Old French.

The standard rule is adding -s to the singular form (maison → maisons).

However, words ending in -s, -x, or -z remain unchanged (prix → prix).

Words ending in -au, -eau, and -eu typically add -x instead of -s (bateau → bateaux).

Most words ending in -al change to -aux in plural form (journal → journaux), though some modern words like festival follow the regular -s rule.

Similarly, certain words ending in -ail change to -aux (travail → travaux), while others follow regular patterns.

While most words ending in -ou simply add -s, seven common nouns take -x instead:

Several French words remain unchanged in plural form, including:

French compound words follow specific patterns based on their components:

Noun + Adjective: both elements take plural (année-lumière → années-lumière)
Verb + Noun: typically only the noun changes (porte-monnaie → porte-monnaie)
Noun + Preposition + Noun: only the first noun usually changes (arc-en-ciel → arcs-en-ciel)

Some common French words have unique plural forms: