Use 'look out' to warn someone about a sudden threat or imminent risk nearby.

Immediate Danger

The phrase often implies that someone should react quickly to avoid harm.

Quick Reflexes

Emphasize looking out for someone as a sign of care and commitment to their safety.

The phrase can imply an ongoing obligation to ensure someone's well-being.

Use 'look out for' to express that you're excitedly waiting for something to happen.

It suggests active awareness in spotting opportunities that may arise.

Refers to a physical place best used for observing or watching carefully.

Lookouts offer a closer connection with nature and are often found in parks.