Pronunciation: /ˈwɑtʃfəl aɪ/
noun the organ of sight
A1 Parents should always keep a watchful eye on their children at the playground.
A2 The security guard kept a watchful eye on the entrance to ensure only authorized personnel entered.
B1 The teacher had a watchful eye on the students during the exam to prevent cheating.
B2 The detective kept a watchful eye on the suspect, waiting for any suspicious behavior.
C1 The CEO always had a watchful eye on the company's finances to ensure profitability.
C2 The experienced pilot had a watchful eye on the controls, ready to make any necessary adjustments during the storm.
formal The security guard kept a watchful eye on the premises throughout the night.
informal I always keep a watchful eye on my kids when we're at the park.
slang Make sure to keep a watchful eye on your belongings in this neighborhood.
figurative The teacher always had a watchful eye on her students' progress and well-being.
watchful eyes
more watchful eye
most watchful eye
watchful eye
will have a watchful eye
has had a watchful eye
is keeping a watchful eye
watchful eye
very watchful eye
to have a watchful eye
having a watchful eye
a watchful eye watching