Kia asks “what kind?” or “what … like?” and can also relate one kind or quality to another. In Kia estas la nova estro?, the speaker wants a description; in Kiu estas la nova estro?, the speaker wants the person’s identity. This kind-versus-individual contrast is the organizing principle of kia.
The core forms are neutral across speech and writing. Exclamatory Kia bela tago! is also ordinary, expressive usage rather than a special literary construction.
Kia in the 5×9 table
The 45 table words pair five fixed initial series with nine fixed semantic endings. Ki- marks question or relative force; -a marks kind or quality.
| Dimension | Relevant forms |
|---|---|
| Initial series | ki- question/relative, ti- demonstrative, i- indefinite, ĉi- universal, neni- negative |
| Final domains | -u individual, -o thing, -a kind, -es possessor, -e place, -am time, -al reason, -el manner, -om quantity |
| The -a column | kia, tia, ia, ĉia, nenia |
| The ki- row | kiu, kio, kia, kies, kie, kiam, kial, kiel, kiom |
Although final -a resembles the ordinary adjective ending, the table word is a fixed member of a closed system. Do not invent hybrids such as kiua or kioma for “what kind”; kioma is a separate derived word asking ordinal position.
See The Table-Word System for the complete grid and the meaning of every row and column.
Asking about kind or quality
Kia can stand predicatively with esti or directly determine a noun.
Kia estis la koncerto hieraŭ vespere?
What was the concert like last night?
Kian muzikon vi kutime aŭskultas dum laboro?
What kind of music do you usually listen to while working?
— Kia estas via nova apartamento? — Luma, kvieta kaj sufiĉe granda.
— What is your new apartment like? — Bright, quiet, and fairly large.
The expected answer describes properties or class: quiet, spicy, reliable, historical, electric. It does not merely name one selected individual.
Mi ne scias, kia vetero estos ĉe la marbordo.
I don't know what the weather will be like on the coast.
Because kia is itself a determiner, do not add la before it: kia vetero, not la kia vetero.
Agreement: kia, kiaj, kian, kiajn
The -a table words behave like adjectives for number and accusative case. They accept both -j and -n, in that order.
| Form | Meaning in context | Example phrase |
|---|---|---|
| kia | singular, non-accusative | kia propono |
| kiaj | plural, non-accusative | kiaj proponoj |
| kian | singular accusative | kian proponon |
| kiajn | plural accusative | kiajn proponojn |
Kiaj homoj kutime partoprenas tiun kurson?
What kinds of people usually take that course?
Kiajn ŝuojn mi kunportu por la ekskurso?
What kind of shoes should I bring for the excursion?
In kiajn ŝuojn, both words are plural and accusative because the whole phrase is the object of kunportu. The endings do not turn kia into an ordinary adjective root; they are the endings specifically licensed on -a correlatives.
Kia versus kiu and kio
English what and which do not preserve Esperanto’s three-way distinction.
Kiu filmo komenciĝas je la oka?
Which film starts at eight?
Kia filmo estas ĝi?
What kind of film is it?
Kio estas filmo?
What is a film?
Kiu filmo selects an individual film from a relevant set. Kia filmo asks about type or qualities—perhaps a comedy, documentary, or silent film. Kio estas filmo? asks for an explanation or definition of the thing.
The same contrast works with people:
Kiu estas Nora? — La nova projektgvidanto.
Who is Nora? — The new project manager.
Kia estas Nora? — Rekta, afabla kaj tre organizita.
What is Nora like? — Direct, kind, and very organized.
Choose the semantic dimension before choosing the Esperanto word.
Embedded and exclamatory kia
In an embedded question, kia still asks for a quality or kind and still receives case from its own clause.
Ĉu vi memoras, kian kafon ŝi mendis?
Do you remember what kind of coffee she ordered?
The phrase kian kafon is the object of mendis, so both words take -n. The main verb memoras does not determine that case.
The ki- series can also be exclamatory:
Kia bela surprizo! Mi tute ne atendis vin hodiaŭ.
What a lovely surprise! I wasn't expecting you at all today.
Kiaj mirindaj fotoj! Ĉu vi mem faris ilin?
What wonderful photos! Did you take them yourself?
The forms agree with the noun even though no answer is being requested.
Relative kia: matching a kind
Relative kia normally corresponds to tia “that kind/such” and introduces a full clause with a finite verb.
Ni bezonas tian solvon, kian ĉiuj povos facile kompreni.
We need the kind of solution that everyone will be able to understand easily.
La hotelo ne estis tia, kia ĝi aspektis en la fotoj.
The hotel was not the way it looked in the photos.
In the first, kian is the direct object of kompreni and agrees with understood singular solvon. In the second, kia is predicative inside its clause. The comparison is about type or quality, not the identity of one individual.
Relative kiu instead identifies a particular individual:
Mi uzis tiun aŭton, kiu staris antaŭ la hotelo.
I used the car that was parked in front of the hotel.
Mi volas tian aŭton, kia povas transporti sep homojn.
I want the kind of car that can carry seven people.
Kia versus kiel in comparisons
Use relative kia before a clause containing a verb. Before a lone comparison phrase without a verb, use kiel.
Ŝi vizitis grandajn urbojn kiel Berlino kaj Varsovio.
She visited large cities such as Berlin and Warsaw.
Do not say urbojn kia Berlino. Kia needs a quality question or a clause relationship; kiel introduces the comparison or example phrase.
Common Mistakes
1. Translating English “what” without choosing a domain
❌ Kio librojn vi preferas?
Incorrect — kio cannot directly determine the plural noun librojn.
✅ Kiajn librojn vi preferas?
What kinds of books do you prefer?
2. Missing agreement
❌ Kiajn proponon ili akceptis?
Incorrect — plural kiajn cannot modify singular proponon.
✅ Kian proponon ili akceptis?
What kind of proposal did they accept?
3. Adding la before a determiner
❌ La kia kurso taŭgus por komencanto?
Incorrect — kia already determines kurso.
✅ Kia kurso taŭgus por komencanto?
What kind of course would suit a beginner?
4. Using kia before a verbless example
❌ Mi ŝatas historiajn urbojn kia Prago.
Incorrect — the following comparison has no verb.
✅ Mi ŝatas historiajn urbojn kiel Prago.
I like historic cities such as Prague.
Key Takeaways
- Ki- supplies question/relative force; -a asks for kind or quality.
- Use kia, kiaj, kian, kiajn with ordinary number and accusative agreement.
- Kiu selects an individual, kio asks about a thing or definition, and kia asks what kind or what something is like.
- Relative kia usually corresponds to tia and introduces a full clause.
- Use kiel, not kia, before a short example or comparison without a verb.
Now practice Esperanto
Reading grammar gets you part of the way. The exercises are where it sticks — free, no signup needed.
Start learning Esperanto →Related Topics
- Kiu: The Question/Relative Individual CorrelativeA1 — Use kiu to ask or relate which individual, adding -j for plural individuals and -n when its role requires the accusative.
- Kio: The Question/Relative Thing CorrelativeA1 — Use kio to ask about an unspecified thing or idea and to link relative clauses to thing-like or clause-like antecedents.
- Tia: The Demonstrative Kind Or Quality CorrelativeA2 — Use tia to point to a particular kind or quality, with the agreement and clause patterns that distinguish it from tiu and tiel.
- Kiel: The Question/Relative Manner CorrelativeA2 — Use kiel to ask about manner and degree, introduce manner clauses, and make comparisons without confusing it with kia or kiom.
- The Table-Word SystemA1 — Learn Esperanto's 45 table words as a five-by-nine meaning system for questions, demonstrations, indefinites, universals, and negatives.
- Case and Number on CorrelativesA2 — Learn exactly which correlative families accept plural -j, object -n, or directional -n, and which remain invariant.