Nur and eĉ are focus particles. Nur excludes alternatives: “only X, not anything beyond X.” Eĉ includes an unexpectedly extreme alternative: “even X, surprising as X may be.” Their meaning depends not just on the sentence but on the exact constituent immediately following them.
Both are primitive, invariable words. They do not need the productive adverb ending -e, and they never take -j or -n. The foundational placement rule is simple: put the particle directly before its focus.
Nur restricts the alternatives
Compare four positions of nur in the same basic message:
Nur Ana sendis la raporton.
Only Ana sent the report.
Ana nur sendis la raporton.
Ana only sent the report; she did nothing further with it.
Ana sendis nur la raporton.
Ana sent only the report, nothing else.
Ana sendis la raporton nur hieraŭ.
Ana sent the report only yesterday, not earlier.
The first excludes other senders; the second excludes other actions; the third excludes other things sent; the fourth excludes earlier times. English also moves “only,” but casual English often leaves it earlier than its logical focus. Copying that loose placement into Esperanto produces avoidable ambiguity.
Nur can restrict numbers, conditions, reasons, or degrees as readily as nouns and verbs.
La riparo daŭros nur du horojn.
The repair will take only two hours.
Mi venos nur se la febro malaperos.
I will come only if the fever goes away.
In the second sentence, nur focuses the se-clause: disappearance of the fever is a necessary condition for coming.
Eĉ includes a surprising extreme
Eĉ signals that its focus lies toward an unexpected or noteworthy edge of the relevant alternatives. It does not literally mean “surprisingly”; it instructs the listener to include a case that might otherwise be left out.
Eĉ Ana memoris la pasvorton.
Even Ana remembered the password.
Ana eĉ telefonis al la teknika servo.
Ana even called technical support.
Ana legis eĉ la piednotojn.
Ana read even the footnotes.
The first makes Ana the unexpected person, the second makes calling an unexpectedly strong action, and the third makes the footnotes the unexpected object. Whether the implication is complimentary, critical, or playful comes from context.
La vojo estis tiel kvieta, ke ni aŭdis eĉ la birdojn en la malproksima arbaro.
The road was so quiet that we could hear even the birds in the distant forest.
The eĉ phrase is integrated into an actual scale of audibility: distant birds are an extreme case.
Nur and eĉ with negation
Negation makes precise placement especially important. Eĉ ne excludes even the least or most expected positive possibility; it commonly translates “not even.”
Li eĉ ne respondis al mia mesaĝo.
He did not even reply to my message.
Eĉ la administranto ne sciis, kial la pordo estis ŝlosita.
Even the manager did not know why the door was locked.
In li eĉ ne respondis, the whole act of replying is the unfulfilled minimum. In eĉ la administranto, the surprising participant is focused, while ne negates knowing.
With nur, compare restriction inside and outside negation:
Mi nur ne memoras la numeron; la adreson mi scias.
I merely do not remember the number; I do know the address.
Mi ne nur memoras la numeron, sed ankaŭ povas tuj telefoni.
I not only remember the number but can also call immediately.
Nur ne memoras restricts the problem to not remembering. Ne nur memoras rejects the claim that remembering is the only relevant fact and normally anticipates sed ankaŭ “but also.”
The paired construction ne nur X, sed ankaŭ Y is neutral in speech and writing. Keep parallel elements in X and Y.
La nova regulo influos ne nur studentojn, sed ankaŭ instruistojn.
The new rule will affect not only students but also teachers.
Eĉ, ankaŭ, and inclusive meaning
Ankaŭ neutrally adds another member: “also/too.” Eĉ adds a member while presenting it as unexpected or extreme. Substituting one for the other changes the speaker's stance.
Ankaŭ Petro venis al la festo.
Petro came to the party too.
Eĉ Petro venis al la festo.
Even Petro came to the party.
The first merely expands the guest list. The second assumes a scale on which Petro was among the least expected guests. Do not use eĉ when no such implication is intended; it can sound pointed or insulting.
Eĉ se: an extreme case does not change the result
The established and transparent order eĉ se introduces a concessive condition: the main clause remains true even under the stated case.
Eĉ se pluvos, ni iros piede al la stacidomo.
Even if it rains, we will walk to the station.
Mi ne subskribos la kontrakton, eĉ se ili proponos rabaton.
I will not sign the contract even if they offer a discount.
Historically and in attested texts, se eĉ also occurs. For modern transparent prose, eĉ se is the clearest order because eĉ directly scopes over the hypothetical condition introduced by se. This is a pedagogical recommendation, not a ban on every literary or historical instance of the other order.
Nur is not nura, sola, or ununura
The primitive particle nur restricts a focused constituent. Derived adjective nura directly describes a noun and usually means “mere” or “consisting of nothing beyond that.” Sola means “alone/sole,” while ununura emphasizes uniqueness: “one and only.”
Tio estis nur ŝerco, ne kritiko.
That was only a joke, not criticism.
La nura penso pri la ekzameno nervozigas lin.
The mere thought of the exam makes him nervous.
Ŝi estis sola en la oficejo, sed ne estis la ununura persono kun ŝlosilo.
She was alone in the office, but she was not the only person with a key.
These forms are related in broad meaning but not interchangeable. Nur ŝi estis en la oficejo means nobody else was there. Ŝi estis sola describes her state of being alone. La nura penso does not mean that the thought was lonely; it means that merely thinking was enough.
There is no need to invent nure when the ordinary focus particle nur does the job. A regular E-form can be built in special contexts from adjective nura, but it means “merely/in a merely-X way” as a derived lexical choice and is not the basic particle.
Placement and prosody
Spoken emphasis can help clarify focus, and literary authors sometimes move particles for rhythm. Nevertheless, adjacent pre-focus placement is the neutral, normatively transparent pattern. It remains essential in writing, where intonation is unavailable.
— Ĉu ĉiuj ricevis deserton? — Jes, eĉ tiuj, kiuj venis malfrue.
— Did everyone get dessert? — Yes, even those who arrived late.
The short reply leaves the repeated predicate understood. Eĉ still directly precedes its focused pronoun phrase. For a broader account, see Placement of Focus Particles.
Common Mistakes
1. Leaving nur in an English-like loose position
❌ Nur mi trinkas kafon matene.
Wrong for the intended ‘I drink only coffee’: this placement says that I am the only person who drinks coffee.
✅ Mi trinkas nur kafon matene.
I drink only coffee in the morning.
2. Using eĉ for neutral addition
❌ Mia frato eĉ venos kun ni.
Wrong for neutral ‘My brother will come too’: eĉ presents his coming as unexpected.
✅ Ankaŭ mia frato venos kun ni.
My brother will come with us too.
3. Using nek as an emphatic not even
❌ Li diris nek unu vorton.
Incorrect for emphatic ‘not even one word’: nek coordinates an additional negative; it is not the focus particle ‘not even.’
✅ Li diris eĉ ne unu vorton.
He did not say even one word.
4. Adding an unnecessary adverb ending
❌ Nure Marta sciis la respondon.
Incorrect for the ordinary focus particle ‘only’: use primitive nur.
✅ Nur Marta sciis la respondon.
Only Marta knew the answer.
5. Confusing nur with sola
❌ Mi nur estis hejme la tutan vesperon.
Wrong for the intended ‘I was alone at home’: nur restricts an action or circumstance, not companionship.
✅ Mi estis sola hejme la tutan vesperon.
I was alone at home all evening.
Key Takeaways
Nur restricts alternatives; eĉ includes a surprising extreme. Both are primitive and invariable, and both normally stand immediately before their focus. With negation, distinguish eĉ ne “not even,” nur ne “merely not,” and ne nur ... sed ankaŭ ... “not only ... but also.” Use ankaŭ for neutral addition, eĉ se for an extreme hypothetical condition, and keep nur separate from adjectival nura, descriptive sola, and uniqueness-marking ununura.
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- Primitive AdverbsA2 — Use Esperanto's endingless adverb-like particles for time, place, degree, focus, and logical connection.
- Adverb PositionA2 — Place adverbs for clear scope, natural information flow, and deliberate focus in Esperanto clauses.
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- Placement of Focus ParticlesB2 — Place nur, ankaŭ, eĉ, ĝuste, precipe, and similar particles directly before the constituent whose alternatives they limit, add, or highlight.