Η αδιάβροχη σκηνή στερεώνεται με πασαλάκια κοντά στο ρυάκι.

Η is the feminine singular definite article, meaning the.

So:

• η σκηνή = the tent
• σκηνή = a tent / tent depending on context

The adjective αδιάβροχη also agrees with σκηνή in gender, number, and case:

• η αδιάβροχη σκηνή = the waterproof tent

Greek adjectives usually match the noun they describe, unlike English adjectives, which do not change form.

Αδιάβροχη means waterproof.

It is the feminine singular form of the adjective αδιάβροχος. It changes because it describes σκηνή, which is feminine.

Typical forms are:

• masculine: αδιάβροχος
• feminine: αδιάβροχη
• neuter: αδιάβροχο

So:

• αδιάβροχη σκηνή = waterproof tent
• αδιάβροχο μπουφάν = waterproof jacket
• αδιάβροχος σάκος = waterproof bag

In Greek, every noun has grammatical gender: masculine, feminine, or neuter. Σκηνή happens to be feminine, so it takes:

• the feminine article η
• the feminine adjective form αδιάβροχη

This is something you usually need to learn together with the noun:

• η σκηνή = the tent

A good habit is to memorize Greek nouns with their article.

Στερεώνεται means is secured, is fixed, or is fastened.

It comes from the verb στερεώνω = to secure / fasten / fix.

In this sentence, στερεώνεται is:

• present tense
• 3rd person singular
• mediopassive form

So it literally gives the idea that the tent is being secured / gets secured.

In natural English here, you would usually say:

• The waterproof tent is secured with pegs near the stream.

The ending -εται is a very common 3rd person singular ending in the Greek mediopassive.

For example:

• στερεώνεται = it is secured
• χτίζεται = it is built
• ανοίγεται = it is opened / opens

This does not always mean a true passive exactly like English. Greek mediopassive forms can cover meanings that are passive, middle, or sometimes closer to gets done.

Here, the meaning is essentially passive:

• η σκηνή στερεώνεται = the tent is secured

It is best understood here as passive-like or mediopassive, not reflexive.

It does not mean that the tent secures itself in a literal reflexive sense. It means that the tent is secured by some means.

So:

• στερεώνει = secures
• στερεώνεται = is secured

For a learner, the safest interpretation in this sentence is simply:

• is secured / is fastened

Με means with, and πασαλάκια means pegs, stakes, or tent pegs.

So:

• με πασαλάκια = with pegs

Here με shows the means or instrument used to secure the tent.

Examples of this use of με:

• γράφω με μολύβι = I write with a pencil
• κόβει με μαχαίρι = he/she cuts with a knife
• στερεώνεται με πασαλάκια = it is secured with pegs

The correct form is πασαλάκια, the plural of πασαλάκι.

• το πασαλάκι = the peg / stake
• τα πασαλάκια = the pegs / stakes

This is a neuter noun ending in -ι in the singular, and many such nouns form the plural in -ια:

• το παιδί → τα παιδιά
• το χωριό → τα χωριά
• το πασαλάκι → τα πασαλάκια

In the sentence, there is no article before it because English would also often just say with pegs, not necessarily with the pegs.

It means near the stream.

Breakdown:

• κοντά = near
• στο = to the / at the / near the depending on context, but here it comes from σε + το
• ρυάκι = stream / brook

So:

• κοντά στο ρυάκι = near the stream

Because Greek usually contracts σε + το into στο.

So:

• σε το → στο
• σε τη / την → often στη(ν)
• σε τα → στα

Examples:

• στο σπίτι = in/to the house
• στη σκηνή = in/to the tent
• στα βουνά = in/to the mountains

Here:

• κοντά στο ρυάκι = near the stream

After σε (here hidden inside στο), the noun is in the accusative case.

However, with many neuter nouns, the nominative and accusative look the same. So:

• nominative: το ρυάκι
• accusative: το ρυάκι

That is why the form does not change visibly here.

So in κοντά στο ρυάκι, ρυάκι is accusative, even though it looks the same as the dictionary form.

Ρυάκι means small stream, brook, or creek. It usually suggests something smaller than a river.

Compare:

• το ρυάκι = stream / brook
• το ποτάμι = river

So κοντά στο ρυάκι sounds like near the little stream/brook, not near the river.

Also, ρυάκι is a neuter noun:

• το ρυάκι

Yes. Greek word order is more flexible than English because endings and articles show grammatical relationships.

This sentence could be rearranged without changing the basic meaning much, for example:

• Η αδιάβροχη σκηνή στερεώνεται με πασαλάκια κοντά στο ρυάκι.
• Η σκηνή στερεώνεται κοντά στο ρυάκι με πασαλάκια.
• Κοντά στο ρυάκι η αδιάβροχη σκηνή στερεώνεται με πασαλάκια.

The difference is usually one of emphasis or style, not core meaning.

Still, the original order sounds natural and clear.

It can feel like a general statement or an instructional description, not only something happening right this second.

Greek present tense often works like English present tense in sentences such as:

• The tent is secured with pegs...
• Bread is baked in an oven.
• This button opens the door.

So the sentence can mean something like:

• The waterproof tent is secured with pegs near the stream
• or in a practical/instructional context, You secure the waterproof tent with pegs near the stream

The exact nuance depends on context.

A rough pronunciation guide is:

• Η = ee
• αδιάβροχη = ah-THEE-av-ro-khee
• σκηνή = skee-NEE
• στερεώνεται = ste-re-O-ne-te
• με = meh
• πασαλάκια = pa-sa-LA-kya
• κοντά = kon-DA
• στο = sto
• ρυάκι = rya-KI

Main stress marks:

• αδιάβροχη? Actually the written accent shows the stress: αδιάβροχη
• σκηνή
• στερεώνεται
• πασαλάκια
• κοντά
• ρυαάκι? More accurately, ρυάκι is stressed on ά

So it is important to follow the written accent marks, because stress in Greek is phonemic and can matter.