Γέμισε το ψεκαστήρι με νερό.

Here Γέμισε means Fill!

It is the singular imperative form of γεμίζω (to fill), so it is used to give a command or instruction to one person.

So:

• Γέμισε = Fill!
• Γεμίστε = Fill! (to more than one person, or polite/formal singular)

In this sentence, it is telling someone to fill the sprayer.

This is about aspect, which is very important in Greek commands.

• Γέμισε is the aorist imperative: it usually means do it as a complete action
• Γέμιζε is the present imperative: it suggests be filling, fill repeatedly, or focuses on the ongoing process

So in a practical instruction like Fill the sprayer with water, Greek normally uses Γέμισε, because the goal is a completed result: the sprayer should end up full.

Yes. Γέμισε can mean either:

• Fill! — imperative
• He/She/It filled — past tense

Greek often has forms that look identical. The meaning is usually clear from context.

For example:

• Γέμισε το ψεκαστήρι με νερό. = Fill the sprayer with water.
  or, in another context,
  He/She filled the sprayer with water.

If this appears in instructions, a recipe, a manual, or a list of steps, it will usually be understood as a command.

Το ψεκαστήρι is a sprayer, spray container, or sometimes spray bottle / pump sprayer, depending on context.

It comes from the idea of spraying. In real life, it could refer to:

• a gardening sprayer
• a spray bottle
• a pesticide sprayer
• another container used for spraying liquid

So the exact English translation may vary a little depending on the situation, but sprayer is a good general translation.

Because ψεκαστήρι is a neuter noun.

In Greek, nouns have grammatical gender:

• ο = masculine
• η = feminine
• το = neuter

So:

• το ψεκαστήρι = the sprayer

Also, in this sentence it is the direct object of the verb Γέμισε, and for many neuter nouns the form looks the same in the nominative and accusative singular.

Με here means with, so:

• με νερό = with water

Greek uses με very naturally when talking about the substance used to fill something:

• Γέμισε το ποτήρι με νερό. = Fill the glass with water.
• Γέμισε τη δεξαμενή με πετρέλαιο. = Fill the tank with diesel.

So με νερό tells you what goes inside the sprayer.

Because Greek often leaves out the article with a material or substance when it is meant in a general sense.

So:

• με νερό = with water

This sounds natural because it means water as a substance, not some specific previously mentioned water.

You could use the article in some contexts, but it would change the nuance. For example, με το νερό would usually mean with the water — some specific water already known in the conversation.

After με, Greek uses the accusative case.

So in με νερό, νερό is accusative singular.

This may not look obvious, because νερό has the same form in the nominative and accusative singular. That is very common with neuter nouns.

It is in the accusative, because it is the direct object of Γέμισε.

You are filling what? → το ψεκαστήρι

Again, because ψεκαστήρι is neuter, its nominative and accusative singular forms are the same, so the form itself does not change.

No, Greek word order is relatively flexible.

The neutral order here is:

• Γέμισε το ψεκαστήρι με νερό.

But you could also hear:

• Γέμισε με νερό το ψεκαστήρι.

Both are understandable. The standard version simply sounds like a normal, straightforward instruction: first the action, then the object, then the substance.

Greek often changes word order for emphasis, rhythm, or style, but this sentence in its given order is the most basic and natural.

A rough pronunciation is:

YEMi-se to psekasti-RI me ne-RO

More carefully:

• Γέμισε = YEH-mee-se
• το = to
• ψεκαστήρι = pse-ka-stee-REE
• με = me
• νερό = ne-RO

A few useful notes:

• γ before ε sounds like a soft y sound
• ψ sounds like ps
• the stress is marked by the accent:
  • Γέμισε
  • ψεκαστήρι
  • νερό

It is usually informal singular, because Γέμισε is the command form used to one person in an informal way.

If you wanted to address:

• more than one person, or
• one person politely/formally

you would usually say:

• Γεμίστε το ψεκαστήρι με νερό.

So the difference is:

• Γέμισε = singular informal
• Γεμίστε = plural or polite singular

Yes. In English, Fill the sprayer with water and Fill up the sprayer with water are both possible.

The Greek sentence itself does not force a big difference between fill and fill up here. It simply gives the instruction to put water into the sprayer until it is filled.

Yes. The accent marks show which syllable is stressed:

• Γέμισε → stress on the first syllable
• ψεκαστήρι → stress on the last syllable
• νερό → stress on the last syllable

Stress matters in Greek pronunciation, and sometimes changing the stress can make a word sound wrong or even change the meaning.

So when learning the sentence, it is a good idea to memorize each word together with its stress.

It is completely natural wherever a sprayer is involved. That could be:

• gardening
• cleaning
• plant care
• pesticide spraying
• water misting
• household spray use

The word ψεκαστήρι makes the context more specific than a general container, but the grammar of the sentence is very ordinary and useful:

• Γέμισε το δοχείο με νερό. = Fill the container with water.
• Γέμισε το μπουκάλι με νερό. = Fill the bottle with water.

So the structure is widely useful, even if this exact noun belongs to a particular situation.