One who admonishes; one who warns of faults, informs of duty, or gives advice and instruction by way of reproof or caution.
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.
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.
An ironclad war vessel, very low in the water, and having one or more heavily-armored revolving turrets, carrying heavy guns.
A tool holder, as for a lathe, shaped like a low turret, and capable of being revolved on a vertical pivot so as to bring successively the several tools in holds into proper position for cutting.
Agriculture looks different today - our farmers are using GPS and you can monitor your irrigation systems over the Internet. Debbie Stabenow
The amount of control you have over somebody if you can monitor internet activity is amazing. Tim Berners-Lee
I'm the type who'd be happy not going anywhere as long as I was sure I knew exactly what was happening at the places I wasn't going to. I'm the type who'd like to sit home and watch every party that I'm invited to on a monitor in my bedroom. Andy Warhol
Parents are working more than ever before and unable to monitor what kids are eating at home, and schools are selling astronomical amounts of junk food in order to supplement shrinking budgets. It's a ticking time bomb, and America's children are exploding. Lisa Ling
Could a government dare to set out with happiness as its goal? Now that there are accepted scientific proofs, it would be easy to audit the progress of national happiness annually, just as we monitor money and GDP. Polly Toynbee