Dutch compound nouns: how to build and read long words
Why Dutch writes compounds as one word, how the last part decides de or het, when to add -s- or -en-, and how to break down very long words.
English says "front door", "bike lock" and "health insurance". Dutch says voordeur, fietsslot and ziektekostenverzekering. Same idea, but glued into one word. Dutch compounds can look intimidating at first, yet they follow a few simple rules, and once you know them, a long word becomes a little puzzle you can solve rather than a wall of letters.
One word, not two
In Dutch, a compound noun is written as one word. Writing the parts separately is a very common mistake, even among native speakers, who sometimes call it de Engelse ziekte (the English disease) because it copies English spelling.
| English | Dutch | Wrong |
|---|---|---|
| front door | de voordeur | voor deur |
| bike lock | het fietsslot | fiets slot |
| living room | de woonkamer | woon kamer |
| health insurance | de zorgverzekering | zorg verzekering |
Notice fietsslot: when the first part ends in the same letter that the second part starts with, you simply keep both, so fietsslot has a double s.
The first part doesn't have to be a noun. It can be a verb stem or an adjective too:
- zwemmen + het bad → het zwembad — swimming pool
- eten + de tafel → de eettafel — dining table
- groot + de vader → de grootvader — grandfather
The last part is the boss
The last part of a compound is the head. It tells you what the thing actually is, and it decides the article.
| Compound | Parts | Article |
|---|---|---|
| het ziekenhuis — hospital | zieken (sick people) + het huis | het |
| de voordeur — front door | voor + de deur | de |
| het fietsslot — bike lock | de fiets + het slot | het |
| de huiskamer — living room | het huis + de kamer | de |
| het kinderboek — children's book | het kind + het boek | het |
So a voordeur is a kind of door, and a deurbel is a kind of bell. Swap the parts and you get a different thing, or nonsense. This rule has no exceptions worth worrying about, which makes it one of the most useful tricks for choosing between de and het (more in De or het?). Plurals follow the last part as well: de voordeuren, de ziekenhuizen.
In speech, the stress normally falls on the first part: VOORdeur, ZIEkenhuis, FIETSslot.
Linking letters: -s- and -e(n)-
Often the parts are joined directly: de fietsband (bike tyre), het huisnummer (house number). But sometimes a linking sound appears between them.
The linking -s-
You'll often hear an s between the parts:
- de verjaardag + het feest → het verjaardagsfeest — birthday party
- de stad + de bus → de stadsbus — city bus
- het leven + het verhaal → het levensverhaal — life story
There's no complete rule for when to add -s-. It's mostly a matter of what you hear, so learn these words as they are. There is one strong pattern, though: words ending in -heid, -ing, -schap and -teit almost always take -s-.
- de veiligheidsgordel — seat belt
- de regeringsleider — head of government
- de universiteitsbibliotheek — university library
The linking -e- or -en-
In words like pannenkoek you hear a short "uh" sound (a schwa) between the parts. In speech the n is usually not pronounced, but in writing you have to choose between -e- and -en-.
The official rule, in its current form from the 2005 spelling update, is based on the plural of the first part:
- If the first part has a plural ending in -en (and not in -s), write -en-.
- Otherwise, write -e-.
| Compound | First part's plural | Linking |
|---|---|---|
| de pannenkoek — pancake | pannen | -en- |
| de boekenkast — bookcase | boeken | -en- |
| de kippensoep — chicken soup | kippen | -en- |
| het ziekenhuis — hospital | zieken | -en- |
| de paardenbloem — dandelion | paarden | -en- |
Note that the meaning doesn't matter: a pannenkoek is cooked in one pan, and a paardenbloem has nothing to do with several horses, but both get -en- because the plurals are pannen and paarden. Before 2005, the spelling was paardebloem; the 2005 update removed several exceptions like this one, which is why you may still see older spellings around.
A few exceptions remain. The best known: when the first part refers to something unique, you write -e-: de zonnebloem (sunflower) and de zonnebril (sunglasses), because there is only one sun.
Tip: Don't try to apply the rule while you're speaking. Learn the common words as wholes, and use the plural rule as a check when you write.
Hyphens where vowels clash
Normally there's no hyphen in a compound. But when the first part ends in a vowel and the second part starts with one, and the two could be read together as one sound, you add a hyphen:
- de zee-egel — sea urchin (not "zeeegel")
- het auto-ongeluk — car accident (otherwise oo would look like one vowel)
- de radio-omroep — radio broadcaster
If the vowels can't be misread, no hyphen is needed: de radioantenne (radio aerial).
You also use a hyphen with names, abbreviations and capital letters, and when you leave out a shared part:
- Noord-Holland — North Holland
- het tv-programma — TV programme
- de voor- en achterdeur — the front and back door
Compounds use a hyphen here, not the two dots called a trema. The trema (as in beëindigen, to end) is used inside single words and with prefixes and suffixes, not in compounds. See Dutch spelling rules for more.
Very long compounds, just for fun
Because Dutch can keep adding parts, compounds can grow surprisingly long. Some are everyday words you'll meet in official letters:
- de ziektekostenverzekering — health insurance
- de arbeidsongeschiktheidsverzekering — disability insurance
- de kinderopvangtoeslag — childcare benefit
There's no fixed maximum length. Dutch speakers happily invent new compounds on the spot, so you'll regularly meet words that aren't in any dictionary. That's fine, because you can work them out.
How to break down a long word
When you see a monster word, take it apart from the end:
- Find the last part. That's what the thing is, and it gives you the article.
- Look for linking letters (-s-, -en-, -e-) and suffixes like -heid or -ing. They mark the borders between parts.
- Work leftwards. Each part describes the part to its right.
Try it with de arbeidsongeschiktheidsverzekering:
- verzekering — insurance. It's a de word, so the whole compound is de.
- ongeschiktheid + -s- — unfitness, inability
- arbeid + -s- — work
So it's insurance for being unable to work: disability insurance. Notice how the -s- after arbeid and after -heid showed you exactly where to cut.
Another one: de fietsenstalling = fietsen (bikes) + stalling (storage). A place to park bikes. You'll see that sign at every Dutch station.
Many compounds also contain words built with suffixes and prefixes. For those building blocks, read Dutch word formation.
Quick summary
- Dutch compounds are written as one word: de voordeur, not two words.
- The last part decides the meaning, the article and the plural: het ziekenhuis, de huiskamer.
- A linking -s- is common, especially after -heid, -ing, -schap, -teit; otherwise learn it by ear.
- Write -en- if the first part's plural ends only in -en (pannenkoek, boekenkast); otherwise -e-. Unique things are an exception: zonnebloem.
- Use a hyphen when vowels could merge (zee-egel, auto-ongeluk) and with names and abbreviations (tv-programma).
- Read long words from the end, and use linking letters to find the borders.
Practise it
Build words from parts in Word formation, and spot compounds with het heads in Het words 1. For lots of everyday compounds like woonkamer and slaapkamer, try At home.