Detaliul acesta lipsește din raport.

Romanian often puts the definite article at the end of the noun instead of using a separate word like English the.

• detaliu = detail
• detaliul = the detail

So Detaliul acesta means this detail or more literally the detail this.

In Romanian, demonstratives like acesta (this) commonly come after the noun:

• detaliul acesta = this detail
• raportul acesta = this report

This is a very normal Romanian structure. You can also sometimes see demonstratives before the noun in more formal or emphatic styles, but after the noun is extremely common in everyday language.

Acesta means this one / this and is the more standard or careful form.

• detaliul acesta = this detail

In everyday spoken Romanian, people very often use ăsta instead:

• detaliul ăsta = this detail

So the difference is mostly one of register:

• acesta = more standard, neutral, sometimes slightly more formal
• ăsta = very common in speech, more informal

Lipsește comes from the verb a lipsi, which means to be missing, to lack, or sometimes to be absent depending on context.

Here, lipsește is:

• 3rd person singular
• present tense

So it means:

• is missing
• is absent

Because the subject is singular—detaliul acesta—the verb is singular too:

• Detaliul acesta lipsește = This detail is missing

Romanian often expresses this idea with a simple verb: a lipsi.

English uses:

• This detail is missing from the report.

Romanian uses:

• Detaliul acesta lipsește din raport.

So where English uses to be + adjective/participle, Romanian can use a main verb. This is just a normal structural difference between the languages.

Din usually means from, and raport means report.

So literally:

• din raport = from the report

In this sentence, it means the detail is missing from or in the report.

Romanian often uses din in places where English might say either:

• from the report
• in the report

depending on what sounds most natural in English.

After some prepositions, Romanian nouns can appear without the definite article, even when English would naturally say the.

So:

• din raport can mean from the report

This is a normal Romanian pattern and does not always match English word-for-word. In other contexts, you may also see din raportul... if the noun is followed by more information, for example:

• din raportul final = from the final report

In your sentence, din raport is perfectly natural.

Yes, but the given order is the most neutral and natural one.

• Detaliul acesta lipsește din raport.

Romanian allows some flexibility in word order for emphasis. For example, you might see:

• Din raport lipsește detaliul acesta.

This version puts more focus on din raport or on the fact that something is missing from the report. But for a learner, the original sentence is the best basic pattern to remember.

Yes. Detaliul acesta is the subject, and lipsește is the verb.

So the structure is:

• Detaliul acesta = subject
• lipsește = verb
• din raport = prepositional phrase showing where it is missing from

This is similar to English:

• This detail / is missing / from the report

A rough English-friendly guide would be:

de-TA-lee-ul a-CHES-ta leep-SHESH-te deen ra-PORT

A few useful notes:

• ce in acesta sounds like che in many Romanian words
• ș sounds like sh
• ă is a short central vowel, somewhat like the a in sofa
• Romanian stress is often important: detáliul, acésta, lipséște, rapórt

If you want to sound more natural, pay special attention to lipséște, where șt is pronounced clearly.

Yes. A lipsi can work in a few related ways:

1. to be missing / absent

   • Un document lipsește.
   • A document is missing.

2. to lack

   • Îi lipsește curajul.
   • He/She lacks courage.

So in your sentence, the meaning is specifically is missing, but it is useful to know that the verb has a broader range.

You would say:

Detaliile acestea lipsesc din raport.

Changes:

• detaliul → detaliile = the details
• acesta → acestea = these
• lipsește → lipsesc = are missing

So the sentence changes to plural in all the relevant parts.