on sight

USAGE SUMMARY

The phrase "on sight" is correct and usable in written English.
It is typically used as a figurative expression to mean as soon as something has been seen, with no delay at all. For example: "My parents recognized me on sight, even though I had been away for a few years."

✓ Grammatically correct

News & Media

Wiki

Science

Human-verified examples from authoritative sources

Exact Expressions

53 human-written examples

YOU WILL BE KILLED ON SIGHT by many of these players!

WikiHow

You know old Unc know one of those on sight".

Vice

Among the older persons, there was only one 'don't know' response on sight disability.

Global Health Action

He repeated one twice in a row: "doa on sight".

Huffington Post

In one city police have orders to shoot perpetrators on sight.

The Economist

I loathed Diana on sight.

Independent

Human-verified similar examples from authoritative sources

Similar Expressions

7 human-written examples

Shoot-on-sight guards enforce curfew.

The New York Times - Books

In 2000 Missouri adopted a shoot-on-sight policy with no restrictions on time or place.

The Economist

The authorities responded with a two-day, shoot-on-sight curfew.

The Economist

Protecting wildlife may ultimately resort to aggressive tactics such as shoot-on-sight policies [12].

Security Informatics

Images were sampled with the Lightframe On-sight Keyspecies Investigation (LOKI) system [6].

Journal of the European Optical Society-Rapid Publications

Expert writing Tips

Best practice

Use "on sight" to convey the idea of an immediate action or recognition based solely on visual perception. For example, "The guards were instructed to shoot trespassers "on sight"" conveys a zero-tolerance policy.

Common error

Avoid using "on sight" when the action isn't truly immediate and visually triggered. Saying "He researched the topic "on sight"" is incorrect; it should be "at first glance" or "initially" if you mean he did some initial research but not a comprehensive job.

Linguistic Context

The phrase "on sight" functions primarily as an adverbial phrase, modifying a verb to indicate the timing or condition under which an action occurs. As Ludwig AI confirms, it specifies that something happens immediately upon being seen. Examples such as "shoot "on sight"" illustrate its role in determining the condition for an action.

Expression frequency: Very common

Frequent in

News & Media

40%

Wiki

14%

Science

14%

Less common in

Encyclopedias

2%

Formal & Business

0%

Social Media

0%

Ludwig's WRAP-UP

In summary, the phrase "on sight" is a commonly used adverbial phrase that means immediately upon seeing something. As confirmed by Ludwig AI, it is grammatically correct and versatile, appearing in a range of contexts from news and media to scientific literature. Its primary function is to emphasize immediacy and a lack of delay based on visual perception. The phrase is most frequently found in "News & Media" as well as "Wiki" and "Science" contexts. When using "on sight", ensure the action truly follows visual perception immediately, and be mindful that while it can be part of severe statements (like "shoot "on sight""), the phrase itself maintains a neutral register. Consider alternatives such as "immediately upon seeing" or "at first glance" for slight variations in meaning. Finally, avoid using "on sight" when the action isn't solely visually triggered or immediate.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

immediately upon seeing

This alternative emphasizes the temporal aspect of the action happening right after the visual perception.

at first glance

Focuses on the initial impression or assessment made upon visual contact.

upon initial viewing

Highlights the start of the visual experience and the subsequent action.

as soon as visible

Emphasizes the condition of being seen as the trigger for the action.

the instant they are seen

Stresses the immediate response to visual detection.

on recognition

Shifts the focus to the act of identifying something visually and reacting.

upon spotting

Highlights the act of noticing or identifying visually and acting accordingly.

at the moment of sighting

Emphasizes the exact time when something is visually detected.

without hesitation upon seeing

Includes the component of immediacy and lack of delay upon viewing.

the second they come into view

Focuses on the very short time frame as something appears.

FAQs

How to use "on sight" in a sentence?

You can use "on sight" to indicate an immediate action taken upon seeing something. For example, "The enemy soldiers were ordered to be shot "on sight"" means they were to be shot as soon as they were seen.

What can I say instead of "on sight"?

You can use alternatives like "immediately upon seeing", "at first glance", or "as soon as visible" depending on the context.

Which is correct, "recognized him on sight" or "recognized him at first sight"?

Both phrases are correct, but they have slightly different nuances. "Recognized him "on sight"" emphasizes immediate recognition, while "recognized him at first sight" highlights that the recognition occurred during the first visual encounter.

What's the difference between "shoot on sight" and "shoot at will"?

"Shoot "on sight"" implies a specific target is to be shot as soon as they are seen. "Shoot at will"/s/shoot+at+will grants a general permission to shoot whenever the shooter deems necessary, without requiring a specific target to be identified beforehand.