Ρίξε το υγρό στο μπουκάλι.

Ρίξε is the singular informal imperative of the verb ρίχνω, which means to throw, to drop, to pour, or to put in by tipping depending on context.

In this sentence, Ρίξε means pour.

A useful thing to notice is that the imperative is built from the verb’s perfective/aorist stem:

• dictionary form: ρίχνω
• aorist stem: ρίξ-
• imperative: ρίξε

So this is the kind of command you use for one complete action: Pour the liquid into the bottle.

It is informal singular: you say it to one person you address as you in a casual way.

If you wanted to say the same thing:

• to more than one person, or
• to one person formally

you would usually say:

• Ρίξτε το υγρό στο μπουκάλι.

So:

• Ρίξε = pour! (to one person, informal)
• Ρίξτε = pour! (to plural/formal)

Το υγρό is the direct object of the verb, so it is in the accusative case.

In English, we usually do not see case endings clearly with nouns, but in Greek the object of the action is typically accusative.

Here:

• το = the (neuter singular accusative)
• υγρό = liquid

So το υγρό means the liquid and answers the question pour what? → the liquid.

Because υγρό is neuter singular, its nominative and accusative forms are the same here, so the phrase looks unchanged.

It can be understood as an adjective used like a noun.

The adjective υγρός / υγρή / υγρό means liquid or wet, depending on context. In this sentence, το υγρό literally means the liquid thing/substance, so in English we naturally translate it as the liquid.

This is very common in Greek: an adjective with the article can function like a noun.

For example:

• το καλό = the good thing
• το άγνωστο = the unknown
• το υγρό = the liquid

Στο is a contraction of:

• σε = to / in / at
• το = the

So:

• σε το → στο

This contraction is normal and expected in modern Greek.

In this sentence:

• στο μπουκάλι = into the bottle / in the bottle

With a verb of movement like ρίχνω, English usually prefers into.

Because the verb ρίξε expresses movement toward a place.

Greek σε + accusative can cover meanings that English often separates into:

• in
• at
• to
• into

So the exact English translation depends on the verb and the situation.

Here, since you are moving/pouring the liquid from outside to inside the bottle, στο μπουκάλι is best understood as:

• into the bottle

If the sentence described location rather than motion, the same form could mean in the bottle.

Μπουκάλι is a neuter singular noun, and in this sentence it is in the accusative because it follows σε.

However, for many neuter nouns in Greek, the nominative and accusative singular are identical.

So:

• nominative: το μπουκάλι
• accusative: το μπουκάλι

After contraction:

• σε το μπουκάλι → στο μπουκάλι

So the noun has the correct case, even though its form does not visibly change.

Greek uses the definite article more often than English.

So where English might sometimes say:

• Pour liquid into a bottle
• Pour the liquid into the bottle

Greek often prefers explicit articles when the speaker has a specific liquid and bottle in mind, or when the items are understood from the situation.

Here:

• το υγρό = the liquid
• στο μπουκάλι = into the bottle

This sounds natural if both speaker and listener know which liquid and which bottle are being discussed.

Yes, you could, but the nuance changes a little.

• Ρίξε suggests pouring or tipping the liquid in.
• Βάλε literally means put, and is more general.

So:

• Ρίξε το υγρό στο μπουκάλι = more specifically pour the liquid into the bottle
• Βάλε το υγρό στο μπουκάλι = more generally put the liquid into the bottle

For liquid, ρίξε often sounds more precise.

Greek imperatives can reflect aspect, not just tense.

Ρίξε is the aorist (perfective) imperative, which is used for a single complete action:

• Pour it in. Do it once. Finish the action.

That is why it fits very naturally here.

A present/imperfective imperative would suggest an ongoing or repeated action, something more like:

• keep pouring
• pour continuously

So Ρίξε is the normal choice for a simple one-time instruction.

A simple pronunciation guide is:

REE-kse to ee-ghRO sto boo-KA-lee

A few notes:

• Ρίξε = REE-kse
• υ here sounds like ee
• γρ in υγρό is not exactly like English gr; the γ is a voiced sound made further back in the mouth
• μπ at the start of μπουκάλι is pronounced like b
• the stress falls on:
  • Ρίξε
  • υγρό
  • μπουκάλι

So the stressed syllables are:

• ΡΙ-ξε
• υ-ΓΡΟ
• μπου-ΚΑ-λι

Yes. Greek word order is more flexible than English word order.

The neutral, straightforward order here is:

• Ρίξε το υγρό στο μπουκάλι.

But other orders are possible for emphasis, for example:

• Στο μπουκάλι ρίξε το υγρό.
  = emphasis on into the bottle
• Το υγρό ρίξε στο μπουκάλι.
  = emphasis on the liquid

Even though word order can change, the original version is the most natural basic command.

You would use μη(ν) plus the appropriate verb form. A natural negative command is:

• Μην ρίξεις το υγρό στο μπουκάλι.

This means:

• Don’t pour the liquid into the bottle.

Notice that negative commands in Greek do not use the positive imperative form directly. Instead, Greek uses μη(ν) with a subjunctive-type form such as ρίξεις.

So:

• positive: Ρίξε το υγρό στο μπουκάλι.
• negative: Μην ρίξεις το υγρό στο μπουκάλι.