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to close in on

to close in on

63 3.9
Move nearer to someone or something, often to surround and catch them
  • phrasal verb
  • /kloʊz ɪn ɑn/
translation icon : acercarse a
  • The hunters slowly closed in on the deer, trying not to make any noise.
  • researchers close in on

And for now, she's closing in on her master's right now.

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Examples

Synonyms

to approach
vsto close in on
532 2.1

To move closer in space to a person or thing

focuses more on moving near with intent to surround or attack
to close in
vsto close in on
119 4.6

Surround or enclose a place by bringing things nearer from all sides

is more about approaching closely rather than fully enclosing
to near
vsto close in on
115 1.0

Move closer to someone or something

implies surrounding or attacking rather than just a simple approach
to come near
vsto close in on
56 1.8

To move closer in space or time

emphasizes surrounding or attacking rather than simple approach
to draw near
vsto close in on
18 2.6

To move closer in place or time

is more sudden and often aimed at surrounding or attacking
to draw close
vsto close in on
8 2.9

Move nearer to someone or something

involves surrounding or attacking more than mere nearness
to draw in
vsto close in on
1 4.3

Move closer to surround something

is about moving in to surround but not always to capture
to crowd in on
vsto close in on
1 4.8

To move close together around a person or thing leaving little space

is about approaching closely rather than forming a tight group

Antonyms

331 2.4

To run away from a place because it is dangerous

235 4.0

To move back from a place or plan to avoid danger

How Close

to encircle
33 3.4
to close in on
63 3.9
to approach
532 2.1

Surface Forms

close in on infinitive
closed in on past participle
closing in on present participle
closes in on third person singular

Morphology

close + in + on

The core meaning (‘to move nearer’) is directly related to 'close' (to draw near), so a B1 learner who knows the parts could infer the basic idea of approaching. However, the particle sequence 'in on' adds a nuanced sense of moving in to surround or target someone that is a phrasal-verb pattern and not fully predictable from the prepositions alone, so the expression is only partially transparent.

Etymology

Close in on comes from the image of hunters or police who close in on a target, slowly getting nearer and surrounding it, so it means 'to move nearer to' or 'to surround'.