Enciende la cerilla con cuidado.

It is the tú imperative of encender (to light / to switch on / to turn on, depending on context).

In this sentence, enciende means light! and is giving an instruction to one person informally.

• Encender → enciende for tú
• This is an irregular stem-changing verb: e → ie
• Compare:
  • yo enciendo
  • tú enciendes
  • imperative: enciende

So Enciende la cerilla means Light the match.

Spanish often uses the definite article (el, la, los, las) where English might use a or no article at all.

Here, la cerilla means the match, but in natural English we might still translate it more loosely as the match or just understand it as the match you are holding / the match in question.

Also:

• cerilla is a feminine noun
• that is why it takes la, not el

So:

• la cerilla = the match

Yes, historically cerilla is related to cera (wax), and the word originally referred to a small wax taper. In modern Peninsular Spanish, cerilla commonly means a match.

This is a good example of how word meanings develop over time.

A learner should mainly remember:

• In Spain, cerilla commonly means match
• In many other Spanish-speaking countries, people are more likely to say fósforo or another regional word

So this sentence sounds especially natural in Spain.

Usually, not as often as in Spain.

In many parts of Latin America, the more common word for match is:

• fósforo

So the equivalent sentence in many Latin American varieties might be:

• Enciende el fósforo con cuidado.

That said, vocabulary varies by country, so exact usage depends on the region.

Con cuidado is a very common and natural way to say carefully in Spanish.

Literally, it means with care, but in normal English translation it is usually just carefully.

Both are possible in some contexts:

• Enciende la cerilla con cuidado.
• Enciende la cerilla cuidadosamente.

But con cuidado is often more common and more conversational.

So if you want natural everyday Spanish, con cuidado is an excellent choice.

Yes, it can move, although the given order is very natural.

Common possibilities include:

• Enciende la cerilla con cuidado.
• Con cuidado, enciende la cerilla.

The first one is the most neutral and straightforward.

Putting con cuidado first can add emphasis, a bit like:

• Carefully, light the match.

So the position can change, but the original sentence is the most ordinary way to say it.

In standard Peninsular Spanish pronunciation:

• enciende ≈ en-THYEN-deh
• la ≈ lah
• cerilla ≈ theh-REE-yah or theh-REE-zha depending on the speaker
• con cuidado ≈ kon kwee-DAH-doh

A few key pronunciation points:

• In most of Spain, c before e/i is pronounced like th in think
  • so cerilla begins with a th sound
• ll may sound like y for many speakers
• Stress:
  • enCIENde
  • ceRIlla
  • cuiDAdo

Because Spanish usually leaves subject pronouns out when they are not needed.

The verb form enciende already tells you this is a command to tú. So saying tú is normally unnecessary.

• Enciende la cerilla con cuidado. = normal
• Tú enciende la cerilla con cuidado. = generally unnatural in ordinary use

Spanish relies much more on the verb ending than English does.

The negative tú command uses the present subjunctive:

• No enciendas la cerilla.
• No enciendas la cerilla con cuidado. would not make much sense if you mean the opposite of carefully
• More naturally: No enciendas la cerilla. = Don't light the match.

This is an important pattern:

• affirmative tú: enciende
• negative tú: no enciendas

So positive and negative commands do not use the same form.

It depends on the variety of Spanish.

In some regions, prender can mean to light / ignite, so prende la cerilla may be understood. But in Spain, encender is the safer and more standard choice here.

So for a learner focusing on Spanish from Spain, it is best to remember:

• encender una cerilla = the most standard option

Cerilla is the match itself, not the flame.

So:

• la cerilla = the match
• the flame would be something like la llama

In the sentence, you are being told to light the match, and con cuidado warns you to do it carefully because it can burn you easily.