Longman Dictionary of Contemporary English homepage

Date: 1800-1900
Origin: From the sound

zoom

1 verb
     
zoom1 [intransitive] informal
1 [always + adverb/preposition] to go somewhere or do something very quickly [= whizz, zip]
zoom off/around/down etc
Brenda jumped in the car and zoomed off.
The work was really easy and I was able to zoom through it in a couple of hours.
2 also zoom up to increase suddenly and quickly [= escalate]
zoom to
Inflation zoomed to 123%.

zoom in

phrasal verb
TCP if a camera zooms in, it makes the person or thing that you are taking a picture of seem bigger and closer
zoom in on
The camera zoomed in on the child's face.

zoom out

phrasal verb
TCP if a camera zooms out, it makes the person or thing that you are taking a picture of seem smaller and further away

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