Moja suszarka leży w łazience obok ręczników.

Because suszarka is a feminine noun in Polish. The possessive adjective my must agree with the noun in gender, number, and case.

So in the nominative singular:

• mój = masculine
• moja = feminine
• moje = neuter

Since suszarka is feminine, you say moja suszarka.

Suszarka is a broad word that can mean a dryer or drying device. Depending on context, it can refer to things like:

• a hair dryer
• a clothes drying rack
• sometimes another kind of dryer

In this sentence, the exact meaning depends on context. Because it is in the bathroom next to the towels, many learners would naturally understand it as a hair dryer, but Polish itself does not force only that meaning here.

Polish often uses verbs that describe an object's position, not just its existence.

Here:

• leżeć = to lie
• stać = to stand
• wisieć = to hang

So leży suggests that the dryer is lying somewhere, probably resting horizontally on a surface.

If you used only jest, that would just mean is, and it would sound less natural in many situations where Polish prefers a position verb.

Leży is the:

• 3rd person singular
• present tense of leżeć = to lie

It is used because the subject, moja suszarka, is:

• singular
• third person from a grammar point of view

So:

• ja leżę = I am lying
• ty leżysz = you are lying
• on/ona/ono leży = he/she/it is lying

Because the preposition w meaning in usually requires the locative case when talking about location.

The noun łazienka changes in the locative singular:

• łazienka → w łazience

So:

• łazienka = bathroom
• w łazience = in the bathroom

This is a normal case change after w when it means location.

It changes because of the locative singular ending and a common stem alternation.

The noun is:

• nominative: łazienka

After w for location, it becomes locative:

• w łazience

This involves:

• replacing the ending -ka
• with the locative form -ce
• and a spelling/sound adjustment in the stem

You do not need to predict every change perfectly at first; it is best to learn common case patterns gradually.

Because obok requires the genitive case.

So:

• ręczniki = towels nominative plural
• ręczników = towels genitive plural

That is why:

• obok ręczników = next to the towels

Many Polish prepositions govern specific cases, and obok is one of the ones that takes the genitive.

It can mean either, depending on context.

Polish has no articles, so it does not directly mark the difference between:

• the towels
• some towels

The sentence simply says next to towels / next to the towels, and the broader context tells you which is meant.

This is very common in Polish and often feels unusual to English speakers at first.

Yes. Polish word order is fairly flexible, because the cases show the grammatical relationships.

The neutral sentence is:

• Moja suszarka leży w łazience obok ręczników.

But you could also say:

• W łazience obok ręczników leży moja suszarka.
• Obok ręczników w łazience leży moja suszarka.

These versions are all grammatical, but they shift the focus or emphasis:

• starting with moja suszarka emphasizes the object
• starting with w łazience emphasizes the location

Not always.

Polish often omits possessive words like my, your, his, if ownership is already obvious from context.

So:

• Suszarka leży w łazience obok ręczników. = The dryer is lying in the bathroom next to the towels.
• Moja suszarka... adds clear ownership: my dryer

Using moja is completely correct. It is just a bit more explicit.

A rough guide:

• ł sounds like English w
• ż sounds like the s in measure
• rz usually sounds the same as ż
• ę is a nasal vowel, but before some consonants it often sounds closer to en/em in actual speech

So roughly:

• łazience ≈ wa-zhyen-tseh
• ręczników ≈ rench-NEE-koof

This is only approximate, but it can help you get started.