Bagajul de mână este ușor.

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

• bagaj = luggage / baggage
• bagajul = the luggage / the baggage

So -ul here is the definite article attached to the noun.

De mână literally means of hand, but in this expression it means hand / carry-on.

So:

• bagaj de mână = hand luggage / carry-on luggage

This is a fixed, natural Romanian expression, not something you would translate word-for-word into natural English.

After a preposition like de, Romanian often uses the noun without the definite article unless there is a specific reason to make it definite.

So:

• mână = hand
• mâna = the hand

In the expression bagaj de mână, Romanian uses the indefinite form because it means hand luggage as a type or category, not luggage of the hand in a literal sense.

In a normal present-tense sentence like this, Romanian generally does need the verb a fi (to be).

So:

• Bagajul de mână este ușor. = correct
• Bagajul de mână ușor. = not standard Romanian

In everyday speech, este is often shortened to e:

• Bagajul de mână e ușor.

That is very common and natural.

Because bagaj is a neuter noun in Romanian.

Romanian neuter nouns behave:

• like masculine in the singular
• like feminine in the plural

Since bagajul is singular, the adjective takes the masculine singular form:

• ușor = masculine/neuter singular
• ușoară = feminine singular
• ușoare = feminine/neuter plural

So:

• bagajul ... este ușor = correct

If it were plural, you would get:

• bagajele de mână sunt ușoare

It can mean both, depending on context.

• ușor = light in weight
• ușor = easy

In this sentence, because it describes bagajul de mână, it means light in weight, not easy.

This is very common in Romanian: one adjective can have several related meanings, and context tells you which one is intended.

A rough guide:

• ă in mână sounds a bit like the a in about
• â in mână is a specifically Romanian sound with no exact English equivalent; it is a central vowel pronounced with the tongue raised in the middle of the mouth
• ș in ușor sounds like sh in shoe

A rough pronunciation of the whole sentence would be something like:

bah-GAH-jool deh MÂ-nuh ES-teh oo-SHOR

That is only approximate, but it helps at the start.

No, this is a very normal Romanian sentence pattern:

• Subject: Bagajul de mână
• Verb: este
• Adjective/complement: ușor

So it follows the basic pattern:

The carry-on luggage + is + light

Nothing unusual is happening with the word order here.

Not normally. In a full sentence like this, Romanian would usually need the definite form bagajul if you mean a specific piece or instance of hand luggage.

So:

• Bagajul de mână este ușor. = natural
• Bagaj de mână este ușor. = unnatural in normal speech

However, bagaj de mână without the article is perfectly normal as a dictionary form, label, or general category:

• Bagaj de mână = carry-on luggage

So the article depends on whether you are naming the category or talking about a specific thing in a sentence.

Bagaj often works like a collective or mass noun, similar to English luggage or baggage.

That means it can refer to baggage in general, not just one clearly countable object. In many contexts, Romanian uses bagaj where English would naturally say luggage.

So in this sentence, bagajul de mână is best understood as the hand luggage / the carry-on baggage, not necessarily one bag.