blink · verb /blɪŋk/
blink
B2 I or T to open and close both of your eyes quickly
Dictionary example:
You've got something in your eye - try blinking a few times.
Learner example:
Her eyes were blinking as she was looking at the bright sunlight outside the window. (First Certificate in English; B2; French)
blink · noun /blɪŋk/
in the blink of an eye
C2 extremely quickly
Dictionary example:
In the blink of an eye, he was gone.
Learner example:
I got dressed [i]n the blink of an eye and I got down to the kitchen almost rolling down the stairs. (Certificate of Proficiency in English; C2; Portuguese)