Ana leșină.

Leșină is the 3rd person singular present tense form of the verb a leșina (to faint, to pass out).

So:

• a leșina = the infinitive, to faint
• leșină = he/she/it faints or is fainting, depending on context

Because the subject is Ana, the sentence means Ana faints or Ana is fainting.

Because leșina and leșină are different forms.

• a leșina = infinitive, to faint
• leșină = present-tense conjugated form, she faints / is fainting

The final ă is important. In Romanian, that letter often marks a different grammatical form and a different pronunciation.

It can mean either one, depending on context.

Romanian present tense often covers both:

• Ana faints
• Ana is fainting

If the context is a general statement, it may mean Ana faints.
If it is happening now, it may mean Ana is fainting.

Romanian does not always separate simple present and present continuous the way English does.

It is pronounced approximately leh-SHI-nuh.

A more accurate breakdown:

• le = like le in let, but a bit cleaner
• ș = sh
• i = a short ee-like sound
• nă = nuh, with ă being a neutral vowel like the a in sofa

The stress is on the second syllable: le-ȘI-nă.

They are Romanian letters with distinct sounds:

• ș = sh, as in shoe
• ă = a short neutral vowel, like the a in sofa or about

So in leșină:

• ș gives the sh sound
• ă gives the final soft uh sound

These marks are not optional in correct Romanian spelling.

Yes, Romanian often allows the subject to be omitted because the verb already gives grammatical information.

So Leșină can mean:

• He faints
• She faints
• It faints
• He/She is fainting

However, in the 3rd person singular, the verb form does not tell you whether the subject is he, she, or it, so adding Ana makes it clear who the subject is.

Yes, it is perfectly natural.

It is a short, simple sentence with:

• a subject: Ana
• a verb: leșină

Romanian often uses short sentences like this, especially in narration or when describing an event.

You add nu before the verb:

• Ana nu leșină.

That means Ana does not faint or Ana is not fainting, depending on context.

The dictionary form is a leșina.

In Romanian, verbs are usually listed with a + infinitive:

• a leșina = to faint
• a merge = to go
• a vedea = to see

So if you want to look this verb up, search for a leșina, not leșină.

It can be used for both.

Depending on context, Ana leșină can mean:

• a general or repeated action: Ana faints
• something happening right now: Ana is fainting

Romanian present tense is flexible in this way, so context is what tells you which interpretation is intended.

You would usually say:

• Ana a leșinat.

This is the common Romanian perfect tense used for past completed actions.

So:

• Ana leșină. = Ana faints / is fainting
• Ana a leșinat. = Ana fainted / has fainted