Tủ lạnh còn tốt.

Còn adds the idea of still. It shows that the situation continues to be true.

So:

• Tủ lạnh tốt = The refrigerator is good / works well
• Tủ lạnh còn tốt = The refrigerator is still good / still works well

In this sentence, còn suggests that maybe the speaker is talking about the fridge’s condition over time, and it has not stopped being good yet.

Vietnamese often does not use a verb like English to be in simple descriptions.

So instead of saying something like Tủ lạnh is still good, Vietnamese simply says:

• Tủ lạnh còn tốt

This is very normal. In Vietnamese, adjective-like words such as tốt can directly describe the noun without needing is.

It can mean both, depending on context.

With Tủ lạnh (refrigerator), tốt often means:

• in good condition
• still working well
• still usable

So Tủ lạnh còn tốt usually means something like:

• The refrigerator is still good
• The refrigerator still works well
• The refrigerator is still in good condition

If you want to be more explicit about functioning, Vietnamese also often says:

• Tủ lạnh còn hoạt động tốt = The refrigerator still works well

Vietnamese word order here is:

• Tủ lạnh = subject/topic
• còn = still
• tốt = good

So the structure is basically:

• [thing] + [still] + [good]

This is very natural in Vietnamese. English often needs is, but Vietnamese does not.

A rough pronunciation guide:

• Tủ: somewhat like too, but with a different vowel quality and the hỏi tone
• lạnh: roughly like lanh, but short and with the nặng tone

Important points:

• ủ is not exactly the English oo
• lạnh ends with nh, which is like the sound in Spanish ñ, though in Vietnamese it behaves a bit differently
• the tones matter a lot

Tone-wise:

• tủ has the hỏi tone
• lạnh has the nặng tone

If a learner says the consonants correctly but misses the tones, Vietnamese listeners may still struggle to understand.

Yes, often you can, but còn and vẫn are not always exactly the same.

In this sentence:

• Tủ lạnh còn tốt
• Tủ lạnh vẫn tốt

Both can mean The refrigerator is still good.

A useful general difference:

• vẫn often emphasizes continuation
• còn can suggest it remains the case / it has not changed yet

In everyday speech, either may work here, but còn tốt sounds very natural when talking about whether something is still usable or in good condition.

Vietnamese does not use articles the way English does.

So:

• Tủ lạnh can mean the refrigerator, a refrigerator, or just refrigerators in a general sense

The exact meaning depends on context.

For example:

• in a house conversation, Tủ lạnh còn tốt probably means The refrigerator is still good
• in a buying/selling context, it could mean This refrigerator is still in good condition

Vietnamese relies much more on context than English does for this.

No, not in this sentence.

Classifiers are commonly used with numbers, demonstratives, or when specifying individual items more clearly. For example:

• cái tủ lạnh này = this refrigerator
• một cái tủ lạnh = a refrigerator

But when speaking generally or making a simple statement about the noun, you can just say:

• Tủ lạnh còn tốt

That is completely natural.

Yes. English translations can vary depending on context.

Possible natural translations include:

• The refrigerator is still good
• The fridge is still fine
• The fridge still works
• The refrigerator is still in good condition

In real conversation, English often uses fine or okay where Vietnamese uses tốt.

It is written as two separate written syllables: tủ lạnh.

That is normal in Vietnamese. Many Vietnamese words and fixed expressions are written with spaces between syllables, even when they function like a single lexical unit.

So learners should not assume that a space always means the same thing it does in English.

Here, tủ lạnh means refrigerator as one unit of meaning.

Yes, very naturally.

If someone is describing a second-hand appliance, Tủ lạnh còn tốt would commonly mean:

• The refrigerator is still in good condition
• The fridge still works well
• It’s still good

This is exactly the kind of sentence you might hear in everyday conversation, especially when talking about old furniture, appliances, or electronics.

You can add a demonstrative:

• Tủ lạnh này còn tốt = This refrigerator is still good
• Cái tủ lạnh này còn tốt = This refrigerator is still good

Both are possible. Adding cái is common in everyday speech when referring to an object.

So:

• Tủ lạnh này còn tốt = a bit simpler
• Cái tủ lạnh này còn tốt = also very natural and conversational

Yes, absolutely.

Tủ lạnh còn tốt is a complete and natural Vietnamese sentence.

Vietnamese does not need:

• an article like the
• a form of to be
• extra words to mark the present tense

So even though it looks short to an English speaker, it is grammatically complete and fully natural.