Se măsoară profilul anvelopei.

In this sentence, se măsoară is a very common Romanian way to express a passive or impersonal idea.

So Se măsoară profilul anvelopei means something like:

• The tire tread/profile is measured
• or One measures the tire tread/profile

The word se here does not mean that the tire is measuring itself. It is part of a construction Romanian often uses where English would prefer the passive.

Not really in meaning.

Even though se is also used in reflexive verbs, here the sentence is best understood as a passive-like construction, not a true reflexive. The subject is not doing the action to itself.

So:

• se spală can sometimes mean washes himself/herself
• but se măsoară profilul anvelopei means the tire tread/profile is measured

This is one of those places where Romanian uses se in a broader way than English uses self-type forms.

Because the thing being measured is profilul, which is singular.

In this kind of se-passive construction, the verb agrees with the grammatical subject:

• Se măsoară profilul = The profile is measured
• Se măsoară profilele = The profiles are measured

So măsoară is singular because profilul is singular.

Profilul comes from profil, meaning profile or, in the context of tires, often tread.

The ending -ul is the Romanian definite article, attached to the end of the noun. Romanian usually puts the at the end, not in front.

So:

• profil = profile / tread
• profilul = the profile / the tread

This is one of the biggest differences from English word structure.

Because anvelopei is the genitive singular form of anvelopă.

Here it means:

• anvelopă = tire
• anvelopei = of the tire

So profilul anvelopei literally means the profile/tread of the tire.

Romanian often expresses of the ... by changing the ending of the noun instead of adding a separate word like English of.

Because Romanian often uses the genitive case instead of a separate word.

English says:

• the profile of the tire

Romanian says:

• profilul anvelopei

The of relationship is shown by the form anvelopei, not by an extra word. That is very normal in Romanian.

Yes.

• profilul = the profile / the tread
• anvelopei = of the tire

So the whole phrase is definite: the tire’s profile/tread or the profile/tread of the tire.

This can feel unusual to English speakers, because definiteness is shown differently in Romanian, but grammatically it is perfectly normal.

Yes. Romanian word order is more flexible than English.

You could also say:

• Profilul anvelopei se măsoară.

That puts more focus on profilul anvelopei.

The original version, Se măsoară profilul anvelopei, is very natural in instructions, manuals, technical writing, and general process descriptions. It sounds a bit like The tire tread is measured or Next, the tire tread is measured.

They are close, but not identical in style.

• Se măsoară profilul anvelopei = a very natural Romanian way to say the tire tread is measured
• Profilul anvelopei este măsurat = a more explicit passive with to be + past participle

Romanian often prefers the se construction because it sounds smoother and more idiomatic in many contexts, especially for general actions, instructions, and technical descriptions.

A rough pronunciation is muh-SOAH-ruh.

A few details:

• ă is a short central vowel, something like the a in sofa
• oa is pronounced together, like oah
• the stress is on soa: mă-SOA-ră

So: muh-SOAH-ruh

A rough pronunciation is an-ve-LO-pey.

Notes:

• stress is usually on LO
• the ending -ei sounds roughly like ey

So: an-ve-LO-pey

Literally, profil means profile, but in the context of tires it often refers to the tread.

So in a technical or automotive context, profilul anvelopei is often best understood as the tire tread or sometimes the tire tread profile, depending on context.

This is a good example of a word whose most natural English translation depends on the subject area.