Pronunciation: /wɑːtʃfəl/
adjective alert and vigilant in observing or noticing something
A1 The watchful cat kept an eye on the mouse.
A2 The watchful lifeguard scanned the pool for any signs of trouble.
B1 The watchful parent monitored their child's online activity.
B2 The watchful security guard noticed the suspicious behavior and alerted the authorities.
C1 The watchful detective observed the suspect's every move in the investigation.
C2 The watchful sniper maintained a keen focus on the target from a distance.
formal The security guard remained watchful throughout the night, ensuring the safety of the premises.
informal I always feel watchful when walking alone at night.
slang Keep a watchful eye on your belongings in crowded areas.
figurative She was watchful of his every move, sensing something was not quite right.
watched
watchfuls
more watchful
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will be watchful
have been watchful
is being watchful
watchful
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to watch
watching
watching