Forming Plurals: Overview

Dutch plurals look intimidating at first because there are several endings, but the system is actually small and learnable. There are only two main plural endings — -en and -s — plus a special apostrophe-s for words ending in certain vowels, and a short list of true irregulars. This page is the map: it shows you the whole landscape and the rule of thumb for choosing the right ending, then routes you to a detailed page for each type. The one twist English speakers must absorb early is that forming the -en plural often changes the spelling of the word itself — so Dutch pluralisation is half morphology, half spelling.

The four types at a glance

Here is every Dutch plural type in one table. Learn to recognise which bucket a noun falls into and you've solved most of the problem.

The rule of thumb for -en vs -s

You'll spend most of your time choosing between -en and -s. Here's the practical rule:

Use -s when the word ends in:

• an unstressed -el, -em, -en, or -er — tafel → tafels, bezem → bezems, jongen → jongens, bakker → bakkers
• the diminutive -je — huisje → huisjes (every diminutive takes -s)
• most vowels and many loanwords — auto → auto's, film → films

Use -en otherwise — which is the large majority of nouns: boek → boeken, huis → huizen, man → mannen.

The logic behind the -s rule is rhythmic: Dutch dislikes stacking another full -en syllable onto a word that already ends in an unstressed -el/-em/-en/-er. Saying tafelen for "tables" would pile up weak syllables; the crisp -s avoids that. The details and the full lists live on the dedicated pages: the -en plural, the -s plural, apostrophe-s plurals, and irregular plurals.

Plurals are half spelling: the -en ending changes the word

Here's the part that surprises English speakers most. In English, the plural ending is just bolted on: book → books, cat → cats, with the base word untouched. In Dutch, adding -en routinely changes the spelling of the stem itself, because it triggers the open/closed-syllable rule.

Three things can happen when -en is added:

• A short vowel doubles the consonant: man → mannen, bom → bommen (the doubled consonant keeps the vowel short).
• A long vowel drops a letter: boom → bomen, maan → manen (the syllable opens, so the doubled vowel becomes single).
• A hidden v/z resurfaces and a devoiced final consonant is restored: brief → brieven, huis → huizen, hond → honden.

So "what is the plural of this word?" is really two questions in Dutch: which ending and what spelling change. The -en plural page walks through every change in detail; the open/closed-syllable page is the underlying engine. The -s plural, by contrast, never changes the stem — which is one reason it feels easier.

The apostrophe is for protecting vowels

One quick orthographic flag, expanded on its own page: when a noun ends in a single stressed a, i, o, u, or y, the -s plural is written with an apostrophe — auto's, foto's, baby's, menu's. Without it, plain -s would close the syllable and shorten the vowel ("fotos" would read with a short o). The apostrophe is a spelling device to keep the vowel long — it is not an English-style possessive.

Common Mistakes

The big one is importing English habits — defaulting to bare -s everywhere, or using the apostrophe as a possessive.

Key Takeaways

• Two main endings: -en (default, most nouns) and -s (after unstressed -el/-em/-en/-er/-je and most vowels/loanwords).
• Apostrophe-s ('s) appears after a single stressed vowel-letter a, i, o, u, y to protect vowel length: foto's, baby's.
• A short list of irregulars must be memorised: kind → kinderen, stad → steden.
• The -en plural often reshapes the stem via the open/closed-syllable rule (man → mannen, boom → bomen, huis → huizen); the -s plural never does.
• Don't default to English -s, and don't treat the apostrophe as a possessive. Start from each detailed page from here.