look out
• be vigilant and take notice.
• "‘Look out!’ warned Billie, seeing a movement from the room beyond"
Similar:
beware,
watch out,
be on (one's) guard,
be alert,
be wary,
be vigilant,
be careful,
be cautious,
pay attention,
take heed,
heed,
keep one's eyes open,
keep one's eyes peeled/skinned,
keep an eye out,
be on the qui vive,
• search for and produce something.
• "I've got a catalogue somewhere and I'll look it out if you're interested"
lookout
noun
• a place from which to keep watch or view the landscape.
• "a fortified lookout tower"
• used to indicate whether a likely outcome is good or bad.
• "‘What if he gets fits?’ ‘It's a bad lookout in that case.’"
