Sorumlu kişi raporu imzaladı.

In Turkish, adjectives normally come before the noun they describe, just like in English.

• sorumlu = responsible / in charge
• kişi = person

So sorumlu kişi means the responsible person or the person in charge.

Sorumlu usually means responsible, accountable, or in charge.

In this sentence, it describes kişi, so it means something like:

• the responsible person
• the person in charge
• the person responsible

The exact English wording depends on context.

Kişi means person. It is a fairly neutral and somewhat formal word.

It is often used in written Turkish, official language, and careful speech. Compared with some other words:

• kişi = person, individual
• insan = human/person
• adam = man / guy, and sometimes informally person, but not neutral in all contexts

So sorumlu kişi sounds natural and appropriate, especially in formal or general contexts.

Because raporu is the definite direct object form.

• rapor = report
• raporu = the report

Turkish often marks a specific, definite direct object with the accusative ending. Here, the report is a specific one, so Turkish uses the accusative:

• rapor
  • -u → raporu

That is why the sentence has raporu imzaladı = signed the report.

The accusative ending changes according to vowel harmony. The four possible forms are:

• -ı
• -i
• -u
• -ü

The noun rapor has o as its last vowel, and after o the correct accusative form is -u.

So:

• rapor → raporu

It normally means the report in this sentence.

A bare object without the accusative often gives a more general or indefinite meaning, while the accusative usually marks a specific object.

So compare:

• rapor imzaladı = signed a report / did report-signing
• raporu imzaladı = signed the report

In your sentence, raporu strongly suggests a specific report already known in the context.

İmzaladı can be analyzed as:

• imzala- = to sign
• -dı = past tense suffix

So imzaladı means signed.

More literally, it is he/she signed or the responsible person signed.

This is due to vowel harmony.

The past tense suffix has several forms:

• -dı
• -di
• -du
• -dü

The last vowel in imzala- is a, so the correct past tense form is -dı.

So:

• imzala-
  • -dı → imzaladı

Yes, in a way. Turkish verbs show person, and imzaladı means he/she/it signed in the simple past.

But in this sentence, the subject is already stated explicitly:

• Sorumlu kişi = the responsible person

So the verb does not need a separate pronoun like he or she.

Turkish usually does not add a pronoun unless it is needed for emphasis or clarity.

Because Turkish is normally an SOV language:

• Subject
• Object
• Verb

So here:

• Sorumlu kişi = subject
• raporu = object
• imzaladı = verb

This gives the standard Turkish order: Sorumlu kişi raporu imzaladı.

Yes, Turkish word order is flexible, but changing it usually changes the focus or emphasis.

For example:

• Sorumlu kişi raporu imzaladı. = neutral order
• Raporu sorumlu kişi imzaladı. = emphasizes it was the responsible person who signed the report
• İmzaladı sorumlu kişi raporu. = possible in special contexts, but much less neutral

So the original sentence is the most standard and neutral version.

Turkish does not have a direct equivalent of the English article the.

Definiteness is often understood through:

• context
• word order
• case marking

In this sentence, raporu is definite because of the accusative ending, and sorumlu kişi can also be understood as definite from the context: the responsible person.

So Turkish often expresses meanings that English uses the for, but without a separate word.

A rough pronunciation guide is:

sorumlu kişi raporu imzaladı
so-ROM-loo kee-SHEE ra-PO-roo eem-za-la-DUH

A few useful sound notes:

• ş sounds like sh
• i is like English ee
• ı is a vowel English does not have exactly; it is a dull, central vowel, somewhat like a relaxed vowel in roses, but not identical

So:

• kişi sounds roughly like kee-shee
• imzaladı ends with -dı, where ı is not the same as English ee

Yes. It is singular.

• kişi = person
• kişiler = people / persons

So sorumlu kişi means the responsible person, not the responsible people.

If it were plural, you might see something like:

• Sorumlu kişiler raporu imzaladı. = The responsible people signed the report.

In Turkish, plural marking appears on the noun, not on the adjective.