Pronunciation: [fˈiːld ɒv ɹɪɡˈɑːd] (IPA) 
The phrase "field of regard" refers to the area that someone can see or focus on at a given time. It is spelled as /fiːld əv rɪˈɡɑːd/. The first word, "field," is spelled as it is pronounced, with a long "e" sound and "ld" at the end. The second word, "of," is spelled as it sounds, with a short "o" and "f" pronounced clearly. The final word, "regard," is spelled with a long "i" sound followed by the letters "ard."
Field of regard refers to the area or extent of vision that an individual or a device can perceive or observe. It specifically pertains to the range or angle of visibility within which objects, events, or actions can be seen or monitored by an observer or a particular piece of technology.
In terms of human perception, the field of regard is the region or zone that falls within an individual's line of sight. It includes everything that a person can visually perceive without the need to turn their head or move their eyes excessively. The field of regard is limited by the natural limitations of human vision, such as peripheral vision or the ability to focus on objects at various distances.
In the context of surveillance and technical devices, the field of regard refers to the complete visual coverage offered by cameras or similar recording devices. It encompasses the entire area or space that the device can capture and record within its designated range or angle of vision.
Understanding the field of regard is crucial in various domains, including military strategy, security systems, and ergonomics, as it helps determine the effectiveness and efficiency of observation or monitoring capabilities. It involves considering the limitations and strengths of human vision or technological devices to ensure adequate perception and coverage of the intended area.
