Reuzo reduktas rubon.

In Esperanto, -o marks a noun. So reuzo is a thing or concept: reuse.

It is built like this:

• uz- = the idea of using
• re- = again
• -o = noun ending

So reuzo literally means reuse or re-use as a noun.

The ending -as shows the present tense in Esperanto. So reduktas means reduces or is reducing.

Some common verb endings are:

• -as = present
• -is = past
• -os = future
• -i = infinitive, like English to reduce

So:

• redukti = to reduce
• reduktas = reduces
• reduktis = reduced

The -n ending marks the direct object. It shows what is being affected by the action.

In Reuzo reduktas rubon:

• Reuzo = the subject, the thing doing the action
• reduktas = the action
• rubon = the thing being reduced

So rubon gets -n because it is the direct object.

Without that ending, rubo would just mean trash/waste as a noun in its basic form.

The base form is rubo.

Here is the breakdown:

• rubo = trash, garbage, waste
• rubon = trash/waste as the direct object

This is very common in Esperanto: you usually learn the noun in -o, and then add -n when it is the direct object.

This sentence uses the very familiar subject–verb–object order:

Reuzo → reduktas → rubon
subject → verb → object

That is the most natural order for beginners and often the clearest.

Because Esperanto marks the object with -n, the word order is more flexible than in English. For example, Rubon reduktas reuzo still means the same thing. But the original order is much more normal and easier to understand.

Both forms are possible, but they are not exactly the same.

• reuzo = reuse, often as a general idea, result, or practice
• reuzado = the act/process of reusing

In a short general statement like Reuzo reduktas rubon, reuzo is very natural. It sounds like Reuse reduces waste.

If you said Reuzado reduktas rubon, that would emphasize the ongoing activity or process of reusing.

Yes. Esperanto often lets you express similar ideas in different ways.

For example:

• Reuzo reduktas rubon. = Reuse reduces waste.
• Reuzi reduktas rubon. = To reuse reduces waste / Reusing reduces waste.

The original sentence uses a noun (reuzo) as the subject. A version with reuzi would use the infinitive verb as the subject. Both are understandable, but Reuzo reduktas rubon sounds clean and slogan-like.

A simple pronunciation guide is:

reh-OO-zoh reh-dook-tahs ROO-bohn

A few helpful points:

• Esperanto stress is almost always on the second-to-last syllable
• re-U-zo
• re-duk-tas
• ru-bon

Also:

• u sounds like oo in food
• r is usually rolled or tapped
• each letter is pronounced clearly

re- means again or back. It works a lot like English re-.

Examples:

• fari = to do, make

• refari = to do again, remake

• uzi = to use
• reuzi = to use again

From that, you get:

• reuzo = reuse

So if you know the prefix re-, many words become easy to understand.

It can mean trash, garbage, or waste, depending on context.

In a sentence like Reuzo reduktas rubon, English often translates it as waste, because that sounds natural in environmental language. But the Esperanto word rubo itself covers the general idea of discarded material.

So the exact English wording can change a little, even though the Esperanto stays the same.