be+on+guard
11Guard ship — Guard Guard, n. [OF. guarde, F. garde; of German origin; cf. OHG. wart, warto, one who watches, warta a watching, Goth. wardja watchman. See {Guard}, v. t.] [1913 Webster] 1. One who, or that which, guards from injury, danger, exposure, or… …
12Guard — may refer to:Professional occupations* Bodyguard, who protects an individual from personal assault * Crossing guard, who stops traffic so pedestrians can cross the street * Prison guard, who supervises prisoners in a prison or jail * Security… …
13guard — or middle guard [gärd] vt. [LME garde < the n.] 1. to keep safe from harm; watch over and protect; defend; shield 2. to watch over; specif., a) to keep from escape or trouble b) to hold in check; control; restrain c) Sports to keep (an… …
14Guard rail — Guard rail, sometimes referred to as guide rail, is a system designed to keep people or vehicles from (in most cases unintentionally) straying into dangerous or off limits areas. A handrail is less restrictive than a guard rail and provides both… …
15Guard-band clipping — is a technique used by digital rendering hardware and software designed to significantly reduce time and bandwidth required to render an image by rejecting parts of the world geometry that fall outside the guard band. Guard band clipping is… …
16guard — Ⅰ. guard UK US /gɑːd/ noun [C] ► WORKPLACE a piece of equipment that protects the user of a machine from being injured by a sharp or dangerous part on the machine: »Make sure that the safety guard is in position before using the cutting machine.… …
17Guard tone — is a feature of wireline modems.The guard tone is sent by the answering modem after it has sent the answer tone. It is a single continuous tone with a frequency of either 1800 Hz or 550 Hz, sent at a level of 6dB or 3dB, respectively, below the… …
18Guard tower — serves as a general term for any military tower providing vigilance, and henceforth guarding a certain area. Famous guard towers*Alcatraz guard towers [ [http://www.flickr.com/photos/9147703@N03/2180231638/ Picture of a guard tower in Alcatraz] ] …
19Guard Intervall — Guard Intervalle werden in der Nachrichtentechnik eingesetzt, um zu verhindern, dass sich bestimmte Übertragungen vermischen. Sie erhöhen die Störfestigkeit gegenüber Ausbreitungsverzögerungen, Echos und Reflexionen, gegen die digitale Daten in… …
20guard — ► VERB 1) watch over in order to protect or control. 2) (guard against) take precautions against. ► NOUN 1) a person, especially a soldier, who guards or keeps watch. 2) (treated as sing. or pl. ) a body of soldiers guarding a place or person. 3) …
