look out

Short definition: The phrase look out means to be careful or watchful, often warning someone of possible danger or risk.

Looking for a clear and natural explanation of the phrasal verb look out? This is a very common expression in English and it’s often used as a warning. It can mean being careful, watching for danger, or even facing a view from a window. Because it appears in both serious and casual conversations, the tone and situation help determine its meaning. Below are detailed meanings with realistic examples so you can clearly understand how look out works in everyday English.

look out v. /ˌlʊk ˈaʊt/

Forms: look out, looks out, looked out, looking out
Related: warn v., beware v., watch v., observe v.
Syllable: look-out

  1. (Verb) Used as a warning to tell someone to be careful.

    Look out is very often used as a warning shout, meaning “be careful” or “watch out for danger.” It is usually said quickly and loudly when something risky or sudden is about to happen.

    Look out! There’s a car coming!
    He yelled “Look out!” just before the ball hit the window.
    Look out for that step—it’s easy to trip.

    Synonyms: watch out, be careful, beware, take care, stay alert, be cautious, pay attention, guard yourself, stay sharp, mind yourself, be on guard, keep your eyes open
    Antonyms: relax, ignore danger, be careless, stay unaware, lower guard, overlook risk, neglect caution, disregard warning, act recklessly, be inattentive, trust blindly, take no precautions

  2. (Verb) To watch or search carefully for something.

    Look out can also mean actively watching or being alert for something specific. It suggests paying close attention because something may happen.

    Please look out for my package while I’m away.
    They were looking out for any signs of trouble.
    Keep looking out for updates on the situation.

    Synonyms: watch for, keep an eye on, monitor, observe closely, stay alert for, be vigilant, track, scan for, check carefully, stay attentive, guard against, anticipate
    Antonyms: ignore, overlook, neglect, miss, disregard, forget to watch, be unaware, avoid noticing, stop monitoring, ignore signs, fail to observe, turn a blind eye

  3. (Verb) To face outward or have a view from a window or position.

    In a more literal sense, look out can describe facing outward from a building or space. It often refers to windows or viewpoints.

    The balcony looks out over the ocean.
    Their apartment looks out onto a busy street.
    She stood at the window looking out at the sunset.

    Synonyms: overlook, face outward, open onto, have a view of, gaze outward, look over, point toward, be oriented toward, face onto, survey, peer out, face the view
    Antonyms: face inward, look inside, turn away, face away, overlook nothing, point inward, close view, block view, look away from, face the wall, avoid view, hide from sight

Conversation Using the Phrasal Verb Look out

While hiking on a steep mountain trail, Arthur and Beatrice discuss safety. This conversation highlights look out, which means to be careful or to watch for potential danger.

Arthur: You need to look out for loose rocks on this part of the path; it’s very easy to slip if you aren't paying close attention.

Beatrice: I’ll look out! I noticed that the trail is becoming much narrower as we get closer to the edge of the cliff side.

Arthur: I read that you should always look out for signs of dehydration when you are exercising in such hot and humid weather conditions.

Beatrice: I noticed that the lifeguard told the swimmers to look out for strong currents near the rocks during the high tide this afternoon.

Arthur: If you don't look out for your own interests in a business deal, no one else is going to do it for you in this industry.

Beatrice: I saw a sign near the forest entrance that warned hikers to look out for bears and to keep their food stored safely and securely.

Arthur: It’s a good habit to look out for your friends and family, especially when they are going through a difficult or stressful time in life.

Beatrice: I agree; I’m going to look out for a new opportunity to improve my skills by taking an online course in digital marketing next month.

Arthur: I’m glad we managed to look out for each other on the climb; it made the journey feel much safer and more enjoyable for us both.

Beatrice: Me too; once we look out for the markers on the way back down, we’ll be able to reach the base camp before it gets dark.

Phrases Containing the Phrasal Verb Look Out

The phrases below show how the phrasal verb look out is used to warn someone, advise caution, or tell someone to stay alert to possible danger.

Look out!

A warning about immediate danger.

Look out! There’s a car coming around the corner much faster than you expect.

Look out for traffic

To be careful about vehicles.

When crossing the street, always look out for traffic coming from both directions.

Look out for yourself

To take care of your own safety or interests.

In competitive environments, you sometimes need to look out for yourself and protect your own well-being.

Look out for danger

To stay alert to risks.

Hikers must look out for danger such as slippery rocks and sudden weather changes.

Look out for opportunities

To stay alert to chances.

Young professionals should look out for opportunities that help them grow and gain experience.

Look out below

A warning to people underneath.

The worker shouted “Look out below!” before lowering the heavy equipment from the roof.

Look out for children

To be careful around kids.

Drivers must look out for children playing near the road, especially in residential areas.

Look out for signs

To watch for indicators.

If you feel unwell, look out for signs that your body needs rest or medical attention.

Look out for changes

To monitor differences.

Investors carefully look out for changes in the market before making decisions.

Look out for one another

To care for each other’s safety.

In difficult times, communities should look out for one another and offer support.

Look out for updates

To stay alert for new information.

Please look out for updates regarding the event schedule on our official website.

Look out for problems

To anticipate potential issues.

Managers need to look out for problems before they become serious obstacles.

Look out for warnings

To pay attention to alerts.

Travelers should look out for warnings issued by local authorities during severe weather.

Look out for mistakes

To check carefully for errors.

Please look out for mistakes in the report before sending it to the client.

Look out for the future

To prepare carefully.

Saving money now helps you look out for the future and unexpected expenses.

Look out for hazards

To stay alert to dangers.

Construction workers must look out for hazards on the job site at all times.

Look out when driving

To drive carefully.

You need to look out when driving in heavy rain because visibility can decrease quickly.

Look out for suspicious activity

To watch for unusual behavior.

Security staff are trained to look out for suspicious activity in crowded areas.

Look out and stay alert

To remain attentive.

During emergencies, it’s important to look out and stay alert to instructions.

Look out for each other’s safety

To protect one another.

Team members should always look out for each other’s safety during challenging tasks.

Words Rhyme with look out

book about
cook the shout
hook the scout
took the doubt
shook the trout
brook the bout
crook the snout
shook the gout
took the route
hook the spout
out
about
shout
scout
doubt
trout
bout
snout
gout
route
spout
stout
clout
flout
without
throughout
devout
redoubt
dropout
turnout
POS: Verb Phrase, Interjection, Interjection Phrase