Alergenul apare pe eticheta alimentară.

Because -ul is the Romanian definite article attached to the end of a masculine singular noun.

• alergen = allergen
• alergenul = the allergen

Unlike English, Romanian usually puts the at the end of the noun instead of before it.

Examples:

• băiat = boy
• băiatul = the boy

So Alergenul means the allergen, not just an allergen.

Apare is the 3rd person singular present tense of a apărea, which means to appear or, in contexts like labels and documents, to be shown / to appear / to be listed.

It is apare because the subject is singular:

• alergenul = the allergen → singular
• therefore the verb must also be singular: apare

A few forms of a apărea:

• eu apar = I appear
• tu apari = you appear
• el/ea apare = he/she/it appears

Here, a natural English sense is often The allergen appears on the food label or The allergen is shown on the food label.

Here, pe means on.

So:

• pe eticheta = on the label

This is just the normal preposition of location.

Important: Romanian also uses pe in another way, as a marker for certain direct objects, especially people, but that is not what is happening here. In this sentence, it simply means on.

Because eticheta is the definite form of etichetă.

• etichetă = a label
• eticheta = the label

This follows the same Romanian pattern of attaching the definite article to the noun:

• casă = house
• casa = the house

So pe eticheta alimentară means on the food label, not just on a food label.

In Romanian, adjectives often come after the noun.

So:

• eticheta alimentară = literally the label food-related
• natural English: the food label

This noun + adjective order is very common in Romanian.

Compare:

• carte interesantă = interesting book
• mașina roșie = the red car
• eticheta alimentară = the food label

English often puts adjectives before the noun, but Romanian usually puts them after.

Because alimentară agrees with eticheta, which is a feminine singular noun.

The adjective comes from alimentar and changes form to match the noun:

• masculine singular: alimentar
• feminine singular: alimentară

Since eticheta is feminine singular, the adjective must also be feminine singular:

• eticheta alimentară

This is called adjective agreement.

Not exactly. Alimentară here means something more like food-related or for food products.

So:

• etichetă alimentară = food label
• etichetă nutrițională = nutritional label

That distinction can matter:

• alimentară relates to food in general
• nutrițională relates specifically to nutrition

Because Alergenul apare pe eticheta alimentară is the most neutral, straightforward word order in Romanian for this idea.

Romanian word order is fairly flexible, but this version is the most natural if you are simply stating a fact:

• Alergenul apare pe eticheta alimentară.

You could change the order for emphasis, for example:

• Pe eticheta alimentară apare alergenul.

That might sound more emphatic or stylistically different, but the original sentence is the plain, standard order.

Yes. Even though a apărea literally means to appear, in practical contexts like labels, forms, screens, and notices, English may translate it more naturally as:

• The allergen appears on the food label.
• The allergen is shown on the food label.
• The allergen is listed on the food label.

The best English translation depends on context, but the Romanian sentence itself is normal.

A simple approximate pronunciation for an English speaker is:

ah-lehr-JEH-nool ah-PAH-reh peh eh-tee-KEH-tah ah-lee-men-TAH-ruh

A few helpful points:

• g in alergenul is a hard g, like in go
• e is usually like eh
• ă is a short central vowel, somewhat like the a in sofa
• the stress is roughly:
  • alerGEnul
  • aPAre
  • etiCHEta
  • alimenTAră

Yes, Alergenul is singular: the allergen.

For the plural, you would say:

• Alergenii apar pe eticheta alimentară.

Breakdown:

• alergenii = the allergens
• apar = appear (plural verb form)

So the verb changes too:

• singular: alergenul apare
• plural: alergenii apar

That would sound unnatural in standard Romanian.

Romanian usually needs the definite form here if you mean a specific allergen and a specific label:

• Alergenul apare pe eticheta alimentară.

If you wanted a more indefinite meaning, you would still normally say:

• Un alergen apare pe o etichetă alimentară. = An allergen appears on a food label.

So Romanian generally does not drop articles in the same way English sometimes can.

The sentence is grammatical and understandable, but depending on the exact context, native speakers might also use other verbs that sound more specific.

For example:

• Alergenul este menționat pe eticheta alimentară. = The allergen is mentioned on the food label.
• Alergenul este indicat pe eticheta alimentară. = The allergen is indicated on the food label.
• Alergenul este trecut pe eticheta alimentară. = The allergen is listed on the food label.

Still, apare is perfectly possible, especially if the idea is simply that the allergen shows up / appears on the label.