1. (n.)monitor a student appointed to assist in the conduct of a class or school, as to help keep order.
2. monitor a person who admonishes, esp. with reference to conduct.
3. monitor something that serves to remind or give warning.
4. monitor a device or arrangement for observing, detecting, or recording the operation of a machine or system, esp. an automatic control system.
5. monitor an instrument for detecting dangerous gases, radiation, etc.
6. monitor Radio and Television.
7. monitor a receiving apparatus used in a control room or studio for monitoring transmissions.
8. monitor a component with a display screen for viewing computer data, television programs, etc.
9. monitor a former U.S. steam-propelled, armored warship of very low freeboard.
10. monitor (cap., italics) the first of such warships, used by Union forces against the Merrimack in 1862.
11. monitor a raised construction straddling the ridge of a roof and having windows or louvers for lighting or ventilating a building.
12. monitor any lizard of the family Varanidae, of Africa, S Asia, the East Indies, and Australia, fabled to give warning of the presence of crocodiles.
13. (v.t.)monitor Radio and Television.
14. monitor to listen to (transmitted signals) on a receiving set in order to check the quality of the transmission.
15. monitor to observe, record, or detect (an operation or condition) with instruments that have no effect upon the operation or condition.
16. monitor to oversee, supervise, or regulate.
17. monitor to watch closely for purposes of control, surveillance, etc.; keep track of.
18. (v.i.)monitor to serve as a monitor, detector, supervisor, etc.
Etymology: (1540–50; < L: adviser =moni-, var. s. of monēre to advise, warn +-tor -tor)
Definition of 'MONITOR'
Princeton's WordNet
1. (noun)proctor, monitor someone who supervises (an examination)
2. (noun)admonisher, monitor, reminder someone who gives a warning so that a mistake can be avoided
7. (verb)monitor, monitor lizard, varan any of various large tropical carnivorous lizards of Africa and Asia and Australia; fabled to warn of crocodiles
8. (verb)monitor, supervise keep tabs on; keep an eye on; keep under surveillance "we are monitoring the air quality"; "the police monitor the suspect's moves"
9. (verb)monitor check, track, or observe by means of a receiver
1. (verb)monitor to watch sth in order to be sure that nothing bad happens We monitor his condition and adapt his medication when necessary.; an organization that monitors the safety of products
3. monitor a device for checking part of the body a heart monitor
4. monitor sb who checks sth is done correctly election monitors
Definition of 'MONITOR'
Webster Dictionary
1. (noun)MONITOR one who admonishes; one who warns of faults, informs of duty, or gives advice and instruction by way of reproof or caution
2. (noun)MONITOR hence, specifically, a pupil selected to look to the school in the absence of the instructor, to notice the absence or faults of the scholars, or to instruct a division or class
3. (noun)MONITOR any large Old World lizard of the genus Varanus; esp., the Egyptian species (V. Niloticus), which is useful because it devours the eggs and young of the crocodile. It is sometimes five or six feet long
4. (noun)MONITOR an ironclad war vessel, very low in the water, and having one or more heavily-armored revolving turrets, carrying heavy guns
5. (noun)MONITOR a tool holder, as for a lathe, shaped like a low turret, and capable of being revolved on a verticalpivot so as to bring successively the several tools in holds into proper position for cutting
Definitions of MONITOR 
Afrikaans: monitor
Arabic: مُراقِب الصَّف
Bulgarian: по-голям ученик отговорен
Brazilian: monitor
Czech: předseda třídy
German: der Klassenordner
Danish: præfekt
Greek: επιμελητής
Spanish: responsable, encargado
Estonian: klassivanem, korrapidaja
Farsi: کنترل
Finnish: valvojaoppilas
French: chef de classe
Hebrew: מַשגִיח
Hindi: कक्षा नायक
Croatian: đak prefekt
Hungarian: felügyelő (diák)
Indonesian: pengawas
Icelandic: bekkjarumsjónarmaður
Italian: capoclasse
Japanese: 学級委員
Korean: 반장
Lithuanian: seniūnas
Latvian: klases vecākais
Malay: pengawas
Dutch: monitor
Norwegian: ordenselev, tilsynselev
Persian: کنترل
Pashto: كنترول
Portuguese: monitor
Romanian: şef de clasă
Russian: староста
Slovak: predseda triedy
Slovenian: reditelj
Serbian: redar
Swedish: ordningsman
Thai: ผู้ดูแล
Turkish: sınıf temsilcisi, mümessi
Taiwanese: 學校班級的班長或股長
Ukrainian: староста в класі
Urdu: جماعت میں نظم و ضبط رکھنے
Vietnamese: lớp trưởng
Chinese: 学校的班长，（英）导生
