Rezervăm o masă marți.

Because Romanian often drops subject pronouns when the verb ending already makes the subject clear.

• rezervăm = we reserve / we are reserving / we will reserve
• The ending -ăm tells you it is 1st person plural: we

So Noi rezervăm o masă marți is possible, but noi is usually unnecessary unless you want emphasis, contrast, or extra clarity.

The ending -ăm is the present-tense ending for we with many Romanian verbs, including a rezerva = to reserve / to book.

A quick breakdown:

• a rezerva = infinitive
• rezerv = I reserve
• rezervi = you reserve
• rezervă = he/she reserves
• rezervăm = we reserve
• rezervați = you all reserve
• rezervă = they reserve

So rezervăm specifically means we reserve.

In Romanian, just like in English, the present tense can be used for a planned future action, especially when there is a time word.

Here, marți gives the time, so Rezervăm o masă marți can mean:

• We’re reserving a table on Tuesday
• We reserve a table on Tuesday
• We’re booking a table for Tuesday / on Tuesday, depending on context

This is very natural in Romanian. The time expression tells you that the action is connected to the future or to a scheduled event.

Here, o is the indefinite article meaning a / an for a feminine singular noun.

• o masă = a table
• masa = the table

Romanian articles depend on gender, number, and definiteness, so o is not just a random extra word.

Also, o can sometimes mean one, but in this sentence it is understood as a.

Because the sentence means a table, not the table.

• masă = table (base noun form)
• o masă = a table
• masa = the table

Romanian usually puts the definite article at the end of the noun, unlike English.

So:

• o masă = an indefinite table
• masa = the specific table

Yes — Romanian often uses the day name without a preposition where English uses on.

So:

• marți = Tuesday or on Tuesday, depending on context

This is normal Romanian usage.

For example:

• Pleacă luni. = He/She leaves on Monday.
• Ne vedem vineri. = We’ll see each other on Friday.

So in your sentence, marți naturally means on Tuesday.

This is a very common question.

• marți usually means on Tuesday / Tuesday for a specific occasion
• marțea often means on Tuesdays / every Tuesday or gives a more general/habitual sense

Compare:

• Rezervăm o masă marți. = We’re reserving a table on Tuesday.
• Rezervăm o masă marțea. = We reserve a table on Tuesdays / every Tuesday.

So marți is the right choice if you mean one specific Tuesday.

Yes. Romanian word order is fairly flexible, although some orders sound more natural depending on emphasis.

The neutral version is:

• Rezervăm o masă marți.

But you could also say:

• Marți rezervăm o masă.
  This emphasizes Tuesday.
• O masă rezervăm marți.
  This is possible, but less neutral and sounds contrastive or marked.

So the original sentence is a very natural, standard order.

Two sounds here often catch English speakers:

1. ă

The letter ă is pronounced like a schwa, similar to the a in English sofa.

So:

• rezervăm sounds roughly like reh-zehr-VUHm
• masă sounds roughly like MAH-suh

2. ț

The letter ț is pronounced ts, like the end of English cats.

So:

• marți sounds roughly like MARTS

Those are very important Romanian sounds, and getting them right will make your pronunciation sound much more natural.