Hungarian suffixes often change their vowel to fit the stem. Back vowels—a, á, o, ó, u, ú—normally call for a back suffix, while front vowels—e, é, i, í, ö, ő, ü, ű—normally call for a front suffix. Thus “in the house” is házban, but “in the garden” is kertben.
Harmony is not a translation rule: English in does not tell you whether Hungarian needs -ban or -ben. First choose the Hungarian stem and the grammatical relationship; then let the stem’s harmony class select the suffix form. This page develops that habit in connected language. The core inventory appears on the companion forms page.
Locating concrete things
Spatial cases make harmony especially visible because the same relation recurs with many nouns. The inessive pair -ban/-ben means “in,” the illative -ba/-be means “into,” and the elative -ból/-ből means “out of” or “from inside.” Back ház selects házban, házba, házból; front kert selects kertben, kertbe, kertből.
A kulcs a fiókban van, a szemüveg pedig a táskában.
The key is in the drawer, and the glasses are in the bag.
Tedd a tejet a hűtőbe, a kenyeret pedig a szekrénybe!
Put the milk in the refrigerator and the bread in the cupboard!
A gyerekek az épületből egyenesen az udvarra futottak.
The children ran straight out of the building into the courtyard.
The vowels ö, ő, ü, and ű are front, so hűtő takes front -be and -ből. A two-way suffix family does not add a rounded form: standard Hungarian has hűtőben, not hűtőbön. Rounding matters only in certain three-way families, covered on Three-Way Harmony and Rounding.
Marking destinations, sources, and comparison points
The directional pairs -ra/-re “onto/to,” -ról/-ről “off/about,” and -tól/-től “from” follow the same back–front split. The English translation may vary with context, but harmony depends on the Hungarian stem.
A térképet az asztalra tettem, de a telefon a széken maradt.
I put the map on the table, but the phone stayed on the chair.
A vonatról leszállva rögtön felhívtam a nővéremet.
As soon as I got off the train, I called my older sister.
A háztól a főtérig körülbelül tíz perc az út.
It is about a ten-minute walk from the house to the main square.
Notice that főtér contains only front vowels, so főtérig uses the invariant suffix -ig rather than a harmonic partner. Not every suffix alternates. Harmony applies only when the suffix actually has variants; learners must not invent -üg or -ög after front rounded vowels.
Recipients, possession, and abstract relations
Harmony also serves meanings that are not spatial. The dative pair -nak/-nek can mark a recipient, possessor, experiencer, or the complement of certain predicates. The adessive -nál/-nél can mean “at someone’s place,” “with,” or the comparison point after a comparative.
Ádámnak küldtem az üzenetet, de Eszternek is szóltam.
I sent the message to Ádám, but I also told Eszter.
A húgomnál alszom, mert az ő lakása közelebb van az egyetemhez.
I’m sleeping at my younger sister’s place because her apartment is closer to the university.
A bizalom fontosabb a pénznél, de nehezebb is felépíteni.
Trust is more important than money, but it is also harder to build.
These examples show why choosing by English wording fails. English to can correspond to -nak/-nek, -hoz/-hez/-höz, -ba/-be, or another construction. Once the Hungarian construction has been selected, however, harmony determines its phonological shape.
Derivation: harmony builds new vocabulary
Derivational suffixes also alternate. The noun-forming pair -ság/-ség creates qualities or states: barát → barátság “friendship,” szép → szépség “beauty.” The adjective-forming -talan/-telen expresses absence: gondtalan “carefree,” végtelen “endless.” These patterns let speakers coin and understand new words because the suffix remains recognizable in its harmonic variants.
A barátság bizalom nélkül üres, a szépség pedig mulandó.
Friendship is empty without trust, and beauty is fleeting.
A hosszú várakozás után végre gondtalanul pihenhetünk.
After the long wait, we can finally relax without a care.
The abstract meaning belongs to the suffix family as a whole, not specifically to á or é. Backness changes the form so that it fits the stem; it does not change “friendship” into a different kind of abstract noun.
Mixed stems: inspect the harmony class, not one letter
Many words contain both back vowels and the front unrounded vowels e, é, i, or í. These front vowels can be harmonically neutral or transparent. A preceding back vowel may still control the suffix: papírban, kávéval, tányéron. The nearest written vowel is therefore not a safe universal controller.
A papírra írt címet a kávézóban hagytam.
I left the address written on the paper in the café.
In papírra, the final í is articulatorily front, but papír belongs to the back-harmony class because its earlier a remains active through the neutral í. Similarly, kávéval remains back harmonic through final neutral é. By contrast, a word with only ordinary front vowels usually takes front suffixes: üvegben, zenéről, köténynek.
Compounds usually take their harmony from the final member because that is the head nearest the suffix: szemüvegtokban has back -ban after final member tok, whereas vasútjegyről has front -ről after jegy.
A szemüvegtokban találtam meg a vasútjegyet.
I found the train ticket in the glasses case.
Lexical exceptions among neutral-vowel stems
Stems containing only e, é, i, or í are often front harmonic: vízben, hírnek, egérrel. Some common stems nevertheless select back suffixes. Compare front-harmonic vízhez with exceptional back-harmonic hídhoz. The contrast is lexical and must be learned.
A hídban repedést találtak, de a vízben nem volt szennyeződés.
They found a crack in the bridge, but there was no contamination in the water.
Context can even determine the harmonic class of an identical written stem. The noun szív “heart” is front harmonic, but the verb szív “smokes/sucks” belongs to a back-harmony conjugational class.
A kezét a szívéhez emelte, amikor meghallotta a hírt.
She raised her hand to her heart when she heard the news.
Nem szívok, mert zavar a füst.
I don’t smoke because the smoke bothers me.
There is no semantic trick that predicts every exceptional stem. Record a diagnostic suffixed form: híd – hídhoz, víz – vízhez, szív – szívhez but szív – szívok as a verb.
A short shop dialogue
This exchange is (informal). The changing suffixes track the noun being discussed.
– Van ebből a bögréből kék is?
‘Do you also have this mug in blue?’
– Igen, de a kékből már csak kettő van.
‘Yes, but there are only two blue ones left.’
– Akkor kérek egyet a kékből, a pirosból pedig kettőt.
‘Then I’ll take one blue one and two red ones.’
Front kék selects kékből; mixed but back-harmonic piros selects pirosból. The English phrase “one of/from the blue ones” does not decide the form; the Hungarian adjective used as a noun does.
Formal and informal comparison
Suffix harmony is the same across registers. An institutional notice may use more elaborate vocabulary (formal), while a message between friends is shorter (informal), but neither setting changes the harmonic class.
Értesítjük az ügyfeleket, hogy az épületben műszaki ellenőrzés kezdődik.
We hereby inform our clients that a technical inspection will begin in the building.
Szólok a barátomnak, aztán találkozunk a kertben.
I’ll tell my friend, and then we’ll meet in the garden.
The formal sentence has front épületben; the informal one has back barátomnak and front kertben. Accentless or disharmonic spellings are not acceptable merely because the message is casual.
Common Mistakes
1. Copying the back suffix as though it were the only dictionary form.
❌ A gyerek a kertban van.
Incorrect — front-vowel kert selects -ben.
✅ A gyerek a kertben van.
The child is in the garden.
2. Inventing a rounded variant in a two-way family.
❌ A torta a hűtőbön maradt.
Incorrect — -ban/-ben has only two forms, so front hűtő takes -ben.
✅ A torta a hűtőben maradt.
The cake was left in the refrigerator.
3. Letting the nearest neutral vowel override a back-harmonic stem.
❌ Apró fémszálak vannak a papírben.
Incorrect — papír belongs to the back-harmony class.
✅ Apró fémszálak vannak a papírban.
There are tiny metal fibers in the paper.
4. Treating every all-neutral stem alike.
❌ A hídben hosszú repedés van.
Incorrect — híd is a lexical back-harmony exception.
✅ A hídban hosszú repedés van.
There is a long crack in the bridge.
Key Takeaways
- Back a, á, o, ó, u, ú normally select back suffixes; front e, é, i, í, ö, ő, ü, ű normally select front suffixes.
- Choose the Hungarian construction first, then its harmonic allomorph; an English preposition cannot select the suffix form.
- Check mixed and neutral-vowel stems lexically, and treat rounding, linking vowels, and exceptions as additional layers rather than one nearest-vowel rule.
Now practice Hungarian
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Start learning Hungarian →Related Topics
- Back and Front Vowel Harmony: Forms and Core PatternA1 — Choose the back or front form of common Hungarian suffixes by recognizing a stem's vowel class and the main neutral-vowel exceptions.
- Back and Front Vowel Harmony: Contrasts and Learner TrapsA2 — A decision guide for back, front, mixed, neutral-vowel, and exceptional stems across Hungarian suffix families.
- Three-Way Harmony and Rounding: Meanings and UsageA2 — How Hungarian uses three-way suffixes for targets, surfaces, settings, and frequency while limiting rounding to specific local environments.
- Neutral Vowels and Disharmonic Stems: Meanings and UsageA2 — Use neutral-vowel stems naturally in locations, descriptions, conversation, compounds, loans, and formal Hungarian.
- Linking Vowels: Meanings and UsageA2 — Use Hungarian linking vowels naturally when counting, marking objects, expressing possession, and conjugating everyday verbs.