monitor
monitor — noun
1. Someone assigned to keep a close watch on an activity, process, or event and rep
Someone assigned to keep a close watch on an activity, process, or event and report their findings, often to check that rules or standards are met.
UN monitors arrived at the polling station before dawn to observe the election.
compound: UN monitor / election monitor
Walid worked as a safety monitor at the construction site last summer.
compound: safety monitor
Abigail was appointed as the independent monitor for the trade negotiations.
Rania served as a ceasefire monitor in the disputed region for six months.
- observer
More general; an observer watches without necessarily being assigned to report
- supervisor
Focuses on overseeing people's work rather than watching a process
- inspector
Implies checking for faults or quality standards, often in a formal setting
文法句型
election monitor
UN monitor
safety monitor
用法筆記
Commonly appears in compound job titles such as 'election monitor', 'safety monitor', 'UN monitor'.
常見錯誤
2. A device or machine that regularly checks, measures, or records information such
A device or machine that regularly checks, measures, or records information such as heart rate, air quality, or system performance.
The heart rate monitor showed that Indra's pulse stayed steady throughout the race.
compound: heart rate monitor
Air quality monitors near the factory recorded unsafe levels of smoke every morning.
compound: air quality monitor
A baby monitor let Yael hear her son cry from the garden.
Layla checked the glucose monitor before every meal to manage her diabetes.
文法句型
heart rate monitor
baby monitor
air quality monitor
用法筆記
The noun describing what is being measured (e.g. 'heart rate', 'baby', 'air quality') always comes before 'monitor'.
3. A screen that displays text, images, or video from a computer or other electroni
A screen that displays text, images, or video from a computer or other electronic device.
Henrik adjusted his monitor to a higher position to reduce neck pain.
Mauricio connected his laptop to a large monitor for the video meeting.
monitor as external display
Élise's monitor displayed two documents side by side so she could compare them.
Ilan bought a new monitor with ultra-thin bezels for his home office setup.
文法句型
monitor + screen size (e.g. 27-inch monitor)
用法筆記
For phones and tablets, 'screen' is more common than 'monitor'. 'Monitor' is the standard term for desktop and laptop computer displays.
常見錯誤
4. A student who is chosen to carry out specific responsibilities in class, like co
A student who is chosen to carry out specific responsibilities in class, like collecting assignments, helping the teacher, or keeping the hallway quiet.
The class monitor collected the homework and placed it on the teacher's desk.
compound: class monitor
Felix served as the hall monitor during the final exams to keep the corridor quiet.
compound: hall monitor
Lien was chosen as the new lunch monitor to help serve food in the cafeteria.
The playground monitor blew a whistle when two children started arguing over a ball.
文法句型
class monitor
hall monitor
lunch monitor
用法筆記
This sense is most common in British and Commonwealth school systems. In Taiwan, the equivalent role is 風紀股長 (classroom discipline monitor).
5. A large tropical reptile with a long body, strong legs, and a forked tongue, fou
A large tropical reptile with a long body, strong legs, and a forked tongue, found in Africa, Asia, and Australia.
A massive monitor lizard was basking on a rock near the riverbank.
full form: monitor lizard
Christopher saw a monitor lizard climb quickly up a tree in the national park.
A water monitor lizard swam across the creek while the tourists watched from the bridge.
Folake read that the Komodo dragon is the largest species of monitor lizard on Earth.
- goanna
Australian term for monitor lizards, common in Australian English
文法句型
monitor lizard
用法筆記
Often used in the two-word compound 'monitor lizard' to distinguish from the other meanings of 'monitor'. The general term 'monitor' alone is usually clear from context.
monitor — verb
1. To keep a close watch on a process, person, or situation for days, weeks, or lon
To keep a close watch on a process, person, or situation for days, weeks, or longer so that you can detect changes, spot problems, or decide what action to take.
Nurses monitored Henrik's blood pressure every hour after the operation.
monitor + noun phrase for medical observation
The system monitors traffic along the highway and warns drivers about delays.
Indra monitored her spending closely to stay within the monthly budget.
Scientists monitor the volcano for signs of an eruption using special equipment.
- observe
Suggests watching with attention, but less systematic and active than 'monitor'
- track
Focuses on following progress or movement over time rather than watching for problems
- supervise
Implies overseeing people or work with authority, not just watching a process
- oversee
Suggests managing or directing an activity, with more authority than monitoring
- ignore
The opposite of giving attention to something over time
文法句型
monitor + noun phrase
monitor + noun phrase + for + noun phrase
用法筆記
Frequently used with adverbs like 'closely', 'regularly', 'continuously', 'carefully'. The preposition 'for' signals what the observer is watching to detect ('monitor for signs of...').