How to Say Be Careful in Spanish (+ Variations You'll Hear)
Be careful in Spanish is ten cuidado — literally “have care.” But this is a phrase family with real range: there’s the gentle cuídate (“take care”) that doubles as an affectionate goodbye, the urgent shout ¡cuidado! when a cyclist is about to flatten someone, and the gloriously Mexican ¡aguas! — literally “waters!” — which is how Mexico City warns you about everything from wet floors to oncoming traffic. Knowing which one to deploy, and how fast, is the point of this guide.
The main way to say it
Ten cuidado — pronounced ten kwee-DAH-doh.
The pronunciation details that matter:
- Stress lands on DAH: kwee-DAH-doh. Four smooth syllables total, with cui- gliding as one beat (kwee), not “koo-ee.”
- The final d in cuidado softens between vowels in native speech — closer to the th in “this.” A regular d is understood everywhere; the soft one just sounds more native.
- The word cuidado is the noun “care/caution”; ten is the informal command “have.” So ten cuidado = “have caution.”
The formal version swaps the command: tenga cuidado (for usted). And for a group: tengan cuidado.
For sudden danger, drop the verb entirely and shout the noun: ¡Cuidado! — the Spanish equivalent of “Watch out!” It’s what you yell, not what you advise.
There’s also the verb cuidarse (“to take care of oneself”), which gives us the single most affectionate member of the family: cuídate (KWEE-dah-teh) — “take care (of yourself).” In Mexico it’s a standard warm way to end a conversation, right up there with nos vemos.
Variations
| Phrase | Meaning | Register |
|---|---|---|
| Ten cuidado | Be careful (informal) | Universal, everyday advice |
| Tenga cuidado | Be careful (formal usted) | Formal, polite |
| ¡Cuidado! | Watch out! | Urgent — immediate danger |
| Cuídate | Take care (of yourself) | Warm, standard goodbye |
| Cuídate mucho | Take good care of yourself | Extra warm, affectionate |
| ¡Aguas! | Watch out! / heads up! | Mexican slang — very common |
| ¡Ojo! | Careful! / pay attention! (“eye!”) | Casual warning, universal |
| ¡Ábrete! / ¡Quítate! | Move! / get out of the way! | Urgent, blunt |
| Con cuidado | Carefully / easy does it | Gentle — handing something fragile |
| Ve con cuidado | Travel safely / go carefully | Warm send-off for someone leaving |
The star here is ¡aguas! — the most Mexican warning there is. The origin story: in colonial times, people emptied wash water out of upper windows into the street and shouted ¡aguas! (“waters!”) so pedestrians below could dodge. The water is gone; the shout survived. Today it covers any incoming hazard: ¡Aguas con el escalón! (“watch the step!”), ¡aguas con ese perro! (“careful with that dog!”). It’s informal but universally understood in Mexico — and using it well is instant street cred.
¡Ojo! — literally “eye!” — is the softer cousin, often accompanied by a finger pointing below the eye. It means “pay attention to this,” great for warnings about scams, tricky contracts, or gossip: Ojo con ese vendedor (“watch out for that salesman”).
Hear it in context
Saying goodbye after a visit (warm):
— Bueno, ya me voy. Está lloviendo horrible. — ¿Manejas tú? Ve con cuidado, ¿eh? — Sí, tranquila. Nos vemos el jueves. — Va. ¡Cuídate mucho!
Well, I’m off. It’s raining horribly. — You’re driving? Go carefully, okay? — Yeah, don’t worry. See you Thursday. — Cool. Take good care of yourself!
On the street in Mexico City (urgent, very Mexican):
— ¡Aguas, aguas! ¡Viene una bici! — ¡Uf! Casi no la veo. Gracias. — Ten cuidado, aquí pasan volando.
Watch out, watch out! Bike coming! — Whew! I almost didn’t see it. Thanks. — Be careful, they fly through here.
Common mistakes
- “Sé cuidado.” Translating “be” literally with ser. Spanish “has” care rather than “being” it: ten cuidado, with tener. (Sé cuidadoso — with the adjective — exists, but it’s stiff; nobody warns you that way.)
- Using “cuídate” for immediate danger. Cuídate is a warm “take care of yourself” for goodbyes and life advice. If a car is coming, it’s ¡cuidado! or ¡aguas! — short, loud, now.
- “Ten cuidado de…” vs “ten cuidado con…” For warning about a specific thing, Spanish overwhelmingly uses con: ten cuidado con el tráfico (“be careful with the traffic”). Reaching for de by analogy with English “careful of” is the classic slip.
- Hearing “¡aguas!” and looking for water. It has nothing to do with rain or drinks anymore — someone is telling you to watch out, right now. React first, ask questions later.
- Stressing the wrong syllable in “cuídate.” It’s KWEE-dah-teh, stress up front — that’s the accent mark’s job. Saying “kwee-DAH-teh” turns the command into something that sounds off to native ears.
Related phrases
Warnings and warm goodbyes live in the same toolbox — stock the rest of it:
- How to say see you later in Spanish — cuídate usually rides along with a nos vemos.
- How to say good luck in Spanish — the natural companion when someone’s heading into something risky.
- Round out your everyday toolkit with our guide to common Spanish phrases.
FAQ
What’s the difference between “ten cuidado” and “cuídate”? Ten cuidado warns about something specific and external — traffic, a scam, an icy step. Cuídate is broader and warmer: “take care of yourself,” used as a goodbye or general well-wishing. One points at a hazard; the other at the person.
What does “¡aguas!” really mean in Mexico? “Watch out!” It dates back to colonial times, when people shouted it before tossing wash water out of windows. Today it’s the all-purpose Mexican heads-up for any incoming hazard — informal, but understood by absolutely everyone.
Is “¡cuidado!” rude to shout at a stranger? Not at all — in urgent situations it’s expected and appreciated. Shouting ¡cuidado! or ¡aguas! at a stranger about to step into traffic is a public service, not an intrusion.
How do I say “be careful with…” something specific? Ten cuidado con + the thing: ten cuidado con el perro (careful with the dog), ten cuidado con lo que firmas (careful what you sign). The preposition is con, not de.
Do people in Spain say “¡aguas!”? No — it’s distinctly Mexican (and Central American). In Spain you’ll hear ¡cuidado! or ¡ojo! instead. Both of those work everywhere, so they’re your safe defaults outside Mexico.
The gap between reading ¡aguas! and actually reacting to it at street speed is exactly what practice closes. Talking through real scenarios with Sofia, an AI Spanish tutor available anytime, is the fastest way to make these phrases reflexes.