Clienta plătește cu cardul la casieră.

Clienta means the female customer.

It comes from the noun clientă = a female customer. In this sentence, it is:

• singular
• feminine
• definite = the customer

So:

• o clientă = a female customer
• clienta = the female customer

If the customer were male, you would usually have:

• clientul = the male customer

Romanian often marks grammatical gender more clearly than English does.

Because Romanian usually puts the definite article at the end of the noun, not before it like English does.

Compare:

• clientă = a female customer

• clienta = the female customer

• card = card
• cardul = the card

This is one of the most important differences from English. Instead of a separate word like the, Romanian often adds an ending to the noun.

Because Romanian definite articles change depending on the noun’s gender and ending.

For feminine nouns ending in -ă, the definite singular often becomes -a:

• clientă → clienta
• casieră → casiera

So the final ă changes to a when the definite article is added.

For many masculine nouns ending in a consonant, the definite article is -ul:

• card → cardul

So the endings are different because the nouns belong to different patterns.

Plătește is the 3rd person singular present tense of the verb a plăti = to pay.

So:

• eu plătesc = I pay / I am paying
• tu plătești = you pay / are paying
• el/ea plătește = he/she pays / is paying

In this sentence, plătește agrees with clienta.

Also, Romanian present tense often covers both English meanings:

• pays
• is paying

So depending on context, Clienta plătește... can mean either The customer pays... or The customer is paying...

Because Romanian usually drops subject pronouns when they are not needed.

The verb ending already tells you the person and number:

• plătește = he/she pays

So Clienta plătește is perfectly natural without ea.

You could add ea, but it would usually give extra emphasis or contrast, something like:

• Ea plătește, nu el. = She is paying, not him.

Because a plăti cu cardul is the normal Romanian way to say to pay by card.

Literally, it looks like with the card, but in Romanian this is an idiomatic and very common structure for means or instruments.

So:

• plătește cu cardul = pays by card

If you say cu un card, that means with a card, usually emphasizing one card in particular or an unspecified card.

Cu card without the article is much less natural here.

Not necessarily.

Even though cardul is formally the definite form, in expressions like cu cardul, Romanian often uses the definite article in a more idiomatic way. It does not always mean that a particular card was previously mentioned.

So in this sentence, cu cardul is best understood as:

• by card
• using a card

rather than strictly with the specific card we already know about

Here, la casieră most naturally means something like:

• at the cashier
• at the checkout
• at the cash desk

Literally, casieră means female cashier, but in everyday usage la casieră often refers to the place where the cashier is and where payment happens.

So the sentence suggests that the customer is paying at the point of payment in a shop, store, office, etc.

Because after la, Romanian very often uses the noun without the definite article when talking about a role, service point, or usual destination.

So la casieră sounds natural in the sense of:

• at/to the cashier
• at the checkout area

This is similar to other common expressions where Romanian prefers a simple noun after la.

If you say la casiera, that sounds more specific: at/to the particular female cashier. It is grammatical, but the version without the article is more natural in a general everyday sentence like this one.

Yes. Romanian word order is more flexible than English word order.

The neutral order here is:

• Clienta plătește cu cardul la casieră.

But Romanian can move parts around for emphasis, topic, or style. For example:

• La casieră, clienta plătește cu cardul.
  Emphasizes where the action happens.

• Clienta plătește la casieră cu cardul.
  Also possible; the meaning stays basically the same.

• Plătește cu cardul la casieră.
  Possible if the subject is already understood from context.

So the original sentence is the most straightforward, but not the only possible order.

The two important special letters here are:

• ă
• ș

ă is a short neutral sound, similar to the vowel in the first syllable of about in many English accents.

ș is pronounced sh, like in shoe.

So plătește is roughly:

• pluh-TEH-shte

That is only an approximation for English speakers, but it helps.

A few other quick pronunciation notes for the sentence:

• c before a in cardul sounds like k
• ci in clienta begins with a klee / kli-type sound
• Romanian spelling is generally more consistent than English spelling

So once you learn the sound values of letters like ă, ș, ț, â, î, pronunciation becomes much easier.