Bu sözlük yeni kelimeler öğrenmek için işe yarıyor.

Bu means this, and sözlük means dictionary. Together, bu sözlük means this dictionary.

In Turkish, demonstratives like bu usually come before the noun, just like in English:

• bu kitap = this book
• bu sözlük = this dictionary

There is no word like the or a/an in Turkish, so sözlük by itself can mean dictionary or a dictionary, depending on context.

Kelime means word, and kelimeler means words.

The sentence uses yeni kelimeler = new words, because the idea is learning words in general, not just one word.

The ending -ler/-lar is the regular plural ending in Turkish. Here it becomes -ler because of vowel harmony:

• kelime → kelimeler
• kitap → kitaplar

So:

• yeni kelime öğrenmek = to learn a new word / to learn word(s)
• yeni kelimeler öğrenmek = to learn new words

Both can be possible in some contexts, but kelimeler is the natural choice here.

A learner might expect something like kelimeleri öğrenmek, but here the sentence uses kelimeler öğrenmek without the accusative.

That is because Turkish often leaves the direct object indefinite when talking about things in a general, non-specific way.

Compare:

• kelimeler öğrenmek = to learn words / to learn some words
• kelimeleri öğrenmek = to learn the words (specific words)

In this sentence, the meaning is general: the dictionary is useful for learning new words in general, not a specific set of words already known to the speaker.

Öğrenmek is the dictionary form of the verb, meaning to learn.

Here it is used because the structure is:

öğrenmek için = for learning / in order to learn

Turkish often uses the infinitive -mek / -mak in places where English might use:

• to learn
• for learning
• in order to learn

So:

• kelimeler öğrenmek = to learn words
• yeni kelimeler öğrenmek için = for learning new words

This is a very common pattern.

İçin usually means for or in order to.

In this sentence, it connects the purpose phrase to the main clause:

• yeni kelimeler öğrenmek için = for learning new words / in order to learn new words

So the sentence is saying that the dictionary is useful for that purpose.

You will see için in many similar expressions:

• Türkçe öğrenmek için = in order to learn Turkish
• senin için = for you
• çocuklar için = for children

İşe yaramak is a common Turkish expression meaning:

• to be useful
• to help
• to serve a purpose
• sometimes to work (in the sense of being effective)

So işe yarıyor here means something like:

• is useful
• works well
• helps

Literally, it is made of:

• işe = to the job/use/purpose (from iş, with the dative ending -e)
• yarıyor = is being of use / is helping

But you should learn işe yaramak as a fixed expression, because the literal meaning is less important than the idiomatic one.

Examples:

• Bu yöntem işe yarıyor. = This method works.
• Bu ilaç işe yaradı. = This medicine worked.
• Bu sözlük işe yarıyor. = This dictionary is useful.

Because the expression is işe yaramak, not just iş yaramak.

The word iş gets the dative ending -e, becoming işe. This is part of the fixed idiom.

So it is best to memorize it as one unit:

• işe yaramak = to be useful / to work

Even though iş often means work or job, in this expression the whole phrase has a more idiomatic meaning.

Yes, yarıyor is the -yor form, which is often taught as the present continuous: is working / is being useful.

But in Turkish, the -yor form is also very commonly used for present situations and even general statements, especially in everyday speech.

So:

• işe yarıyor = is useful / works
• işe yarar = is useful / works

Both are possible, but they feel slightly different:

• işe yarıyor sounds very natural in spoken Turkish
• işe yarar can sound more general, habitual, or formal

In this sentence, yarıyor is completely normal.

The given order is very natural:

Bu sözlük yeni kelimeler öğrenmek için işe yarıyor.

Turkish word order is flexible, but the neutral pattern often places the verb at the end and puts the purpose phrase before it.

You might also hear variations for emphasis, such as:

• Yeni kelimeler öğrenmek için bu sözlük işe yarıyor.

This puts more focus on for learning new words.

Even when word order changes, the verb usually stays near the end in standard Turkish.

Yes. A very common alternative is:

Bu sözlük yeni kelimeler öğrenmek için yararlı.

This means almost the same thing: This dictionary is useful for learning new words.

The difference is mostly stylistic:

• yararlı = useful, beneficial
• işe yarıyor = works, is useful, does the job

İşe yarıyor often feels a bit more practical and conversational, while yararlı can sound slightly more descriptive or formal.

Yes. In many sentences, Turkish verb + için can be translated in either way depending on what sounds natural in English.

So:

• yeni kelimeler öğrenmek için can be understood as
  • for learning new words
  • in order to learn new words

English chooses between those based on style, but the Turkish structure is the same.

A helpful breakdown is:

• Bu sözlük = this dictionary
• yeni kelimeler = new words
• öğrenmek için = for learning / in order to learn
• işe yarıyor = is useful / works

So the structure is:

[This dictionary] [for learning new words] [is useful].

That is a very typical Turkish pattern: topic or subject first, purpose phrase next, and the main verb at the end.