Hít thở rồi thư giãn nhé.

A natural breakdown is:

• hít thở = breathe / take a breath
• rồi = then / and then
• thư giãn = relax
• nhé = a soft, friendly sentence-ending particle, something like okay?, all right?, or a gentle encouraging tone

So the sentence gives two actions in sequence: breathe, then relax.

Vietnamese often leaves out the subject when it is obvious from context. In English, you usually need you in commands, even if it is understood: Breathe and relax. In Vietnamese, it is very normal to just say the verbs.

So Hít thở rồi thư giãn nhé works as a complete sentence even without a pronoun. The listener understands that the speaker is talking to them.

If you wanted, you could add a pronoun or name for clarity, but it is not necessary:

• Em hít thở rồi thư giãn nhé.
• Con hít thở rồi thư giãn nhé.

In this sentence, rồi links actions in sequence: first one thing, then the next.

So:

• hít thở rồi thư giãn = breathe, then relax

It helps show order and flow. Without rồi, the sentence could still be understood, but rồi makes it clearer and more natural as a step-by-step instruction.

Be careful: rồi has several uses in Vietnamese. In other sentences it can mean something more like already. But here it means then / and then.

Thở means to breathe.
Hít means to inhale.

When combined as hít thở, it often means to breathe in a fuller sense, especially in calm, deliberate breathing. It can sound a bit more intentional than just thở.

So in a relaxing or wellness context, hít thở is very natural, because it suggests controlled breathing, not just the basic act of being alive and breathing.

Compare:

• thở = breathe
• hít thở = breathe, often with attention to inhaling/exhaling

Nhé softens the sentence and makes it sound gentle, warm, and encouraging.

Without nhé, the sentence can sound more direct:

• Hít thở rồi thư giãn.

With nhé, it feels more like:

• Breathe and relax, okay?
• Just breathe and relax, all right?

It is very common in spoken Vietnamese when giving friendly suggestions, instructions, or reassurance.

It is mainly an imperative, but a soft one. In English, that means it is technically telling someone what to do, but in a kind, supportive way.

Depending on context, it can sound like:

• a gentle instruction
• reassurance
• encouragement
• a soothing suggestion

Because of nhé, it usually does not feel harsh. It would fit situations like calming someone down, guiding meditation, helping a nervous child, or speaking kindly to a friend.

Vietnamese often expresses actions in sequence very directly: verb + rồi + verb.

Here the structure is:

• Hít thở = first action
• rồi = then
• thư giãn = second action

English often uses and, then, or separate clauses:

• Breathe and then relax
• Take a breath, then relax

Vietnamese can be very compact in this kind of pattern.

Here thư giãn functions like a verb: to relax.

Vietnamese words are often flexible and do not always fit neatly into English-style categories. Thư giãn can refer to the state of being relaxed, but in this sentence it clearly means the action/result:

• thư giãn nhé = relax, okay?

This kind of flexibility is very normal in Vietnamese.

A rough English-friendly guide is:

• Hít ≈ heet
• thở ≈ something like tuh with a breathy th, plus the hỏi tone
• rồi ≈ roughly zoy in northern Vietnamese, yoy or roy-like in some southern speech, with a falling-then-rising tone
• thư giãn ≈ roughly thư zan in the north, thư yan-like in some southern speech
• nhé ≈ roughly nyeh

A more important point than exact English spelling is the rhythm:

• Hít thở | rồi thư giãn nhé
• It is usually said gently and soothingly.

If you are learning tones, note that the sentence contains several important ones, so listening to native audio is especially helpful.

Yes, it sounds very natural. A native speaker might say it when:

• calming someone who is anxious
• guiding breathing exercises
• leading meditation or yoga
• comforting a child
• helping a friend settle down
• speaking softly in a medical or caregiving situation

Because of nhé, it sounds caring rather than strict. It would be less suitable in a very formal written context, but it is excellent for everyday spoken Vietnamese.

Yes, but the tone would change.

For example:

• Hít thở rồi thư giãn đi.
  This is still common, but đi can sound more like a straightforward prompt: Go ahead and breathe, then relax.

• Hít thở rồi thư giãn nào.
  This sounds encouraging and inviting, often used when motivating someone.

• Hít thở rồi thư giãn nhé.
  This sounds gentle, warm, and reassuring.

So nhé is a very good choice if you want the sentence to feel soft and kind.