La direktoro ŝanĝis la lumigon.

In Esperanto, -o marks a noun. So:

• direktor-o = director
• lumig-o = lighting / illumination

This ending is one of the most important regular patterns in Esperanto: if a word ends in -o, it is a noun.

La is the definite article, meaning the. Esperanto uses the same form la for all nouns, regardless of gender, number, or case.

So:

• la direktoro = the director
• la lumigon = the lighting (with an extra -n for grammar, explained below)

Unlike English, Esperanto does not have separate forms like a and an as definite articles. La always means the.

The -n ending marks the direct object in Esperanto. That means it shows what is being acted on.

In this sentence:

• La direktoro = the director → the one doing the action
• ŝanĝis = changed
• la lumigon = the lighting → the thing that was changed

So -n tells you that lumigo is the object of ŝanĝis.

The ending -is marks the past tense in Esperanto.

• ŝanĝas = changes / is changing
• ŝanĝis = changed
• ŝanĝos = will change

So ŝanĝis means the action happened in the past: changed.

It comes from the verb root ŝanĝ-, meaning change.

Then Esperanto adds a tense ending:

• ŝanĝ-i = to change
• ŝanĝ-as = changes / is changing
• ŝanĝ-is = changed
• ŝanĝ-os = will change

So ŝanĝis is simply change + past tense.

Good question. These two are related, but not identical:

• lumo = light
• lumigi = to illuminate, to light up
• lumigo = illumination, lighting, the act or system of lighting

So lumigon here probably means the lighting rather than just the light.

A helpful way to see it:

• lum- = light-related root
• -ig- = causes something to become or do something
• -o = noun

So lumigo is something like the causing of light / illumination / lighting.

-ig- is a very common Esperanto suffix meaning to cause something to become or do something.

For example:

• brili = to shine

• briligi = to make something shine

• varma = warm
• varmigi = to make warm, to heat

So:

• lumi = to shine / give light
• lumigi = to light up, illuminate
• lumigo = lighting, illumination

This suffix is very useful in Esperanto and appears in many words.

Ŝ is pronounced like English sh.

So ŝanĝis starts with the sound sh.

Roughly, you could pronounce it something like:

• SHAHN-jees

That is only an approximation, but it helps for an English speaker.

Ĝ is pronounced like the j in jam or judge.

So in ŝanĝis, the ĝ is a soft j sound, not a hard g.

Very roughly:

• ŝanĝis ≈ SHAHN-jees

The normal word order is subject–verb–object, just like in English:

• La direktoro = subject
• ŝanĝis = verb
• la lumigon = object

So the sentence follows a very natural order for English speakers.

Because Esperanto marks the object with -n, the word order can sometimes be changed for emphasis, but this basic order is the most straightforward.

Yes. Direktoro is a broad word meaning director, manager, or head of something, depending on context.

It could refer to:

• a company director
• a school principal or head
• an organizational manager
• sometimes a film or theater director, depending on context

So the exact English translation depends on the situation.

Esperanto usually puts tense directly on the main verb, so it does not need a helping verb like English often does.

English:

• The director changed the lighting.

Esperanto:

• La direktoro ŝanĝis la lumigon.

The ending -is already shows past tense, so no separate word like did is needed.

Yes, that would be incorrect in standard Esperanto.

Because lumigo is the direct object of ŝanĝis, it needs the accusative -n:

• correct: La direktoro ŝanĝis la lumigon
• incorrect: La direktoro ŝanĝis la lumigo

Without -n, the grammar would be incomplete or misleading.

Possibly, yes, depending on context. Lumigo can be translated in several related ways:

• lighting
• illumination
• sometimes the lighting setup

Esperanto words are often broad and regular in meaning, so the exact best translation depends on the situation being described.