on guard

Definitions

  • On Guard
    On Guard
  • WordNet 3.6
    • adj on guard vigilant "on guard against con artists","must remain on your guard in such a situation"
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Additional illustrations & photos:

Coast Guard Cutter, Miami, on July Fourth Coast Guard Cutter, Miami, on July Fourth

Webster's Revised Unabridged Dictionary
  • Interesting fact: Based on a US Justice Department study conducted between 1992 and 1996, workplace violence troubles 1.7 million Americans a year. Number of workers attacked or threatened per thousand: Police officers: 306, Private security guards: 218, Taxi drivers: 184, Prison guards: 117, Bartenders: 91, Mental health professionals: 80, Gas station attendants: 79.
    • On guard serving in the capacity of a guard; doing duty as a guard or sentinel; watching.
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Quotations

  • Christian Nevell Bovee
    Christian%20Nevell%20Bovee
    “Wine is a treacherous friend who you must always be on guard for.”
  • Publilius Syrus
    Publilius%20Syrus
    “One is not exposed to danger who, even when in safety is always on their guard.”
  • George Bernard Shaw
    George%20Bernard%20Shaw
    “You don't learn to hold your own in the world by standing on guard, but by attacking and getting well hammered yourself.”
  • James A. Froude
    James%20A.%20Froude
    “The first duty of an historian is to be on guard against his own sympathies.”
  • Latin Proverb
    Latin Proverb
    “Believe nothing and be on your guard against everything.”
  • Horace
    Horace
    “Be ever on your guard what you say of anybody and to whom.”

Usage

In literature:

The troops which opposed him were on that day supposed to be the flank guard of the enemy which was attacking the 5th French Army.
"1914" by John French, Viscount of Ypres
I merely spoke to you to set you on your guard against him.
"The Opal Serpent" by Fergus Hume
Meanwhile, the National Guard was always on foot: on Sunday, a review; military promenades, occasionally; and, every night, patrols.
"Bouvard and Pécuchet" by Gustave Flaubert
Most of the men were wrapped in their blankets, apparently asleep; three were sitting upright, on guard.
"The Fire People" by Ray Cummings
Then you started on your stroll, and the man who remained on guard set out after you.
"The Girl and The Bill" by Bannister Merwin
The officer of the guard is accountable to the admiral for all transactions on the water during his guard.
"The Sailor's Word-Book" by William Henry Smyth
I told him that would never do, that there he could see nothing in our front, and might as well not be on guard at all.
"The Story of a Common Soldier of Army Life in the Civil War, 1861-1865" by Leander Stillwell
The bayonet is not fixed except in bayonet exercise, on guard, or for combat.
"Manual of Military Training" by James A. Moss
A report that the guards were on the point of going over to the people brought the king around.
"A History of the Nineteenth Century, Year by Year" by Edwin Emerson
I warned Chanden Sing to be on the alert, and set him on guard at the entrance of the temple.
"An Explorer's Adventures in Tibet" by A. Henry Savage Landor
Them sheep herders have just seen that we're on guard an' they've gone back home t' report.
"The Boy Ranchers at Spur Creek" by Willard F. Baker
And now, sluggish with its meal, it seemed less alert and on guard.
"The Raid on the Termites" by Paul Ernst
About twice every month we went out on a practice march for one day, only leaving about one company on guard.
"A Soldier in the Philippines" by Needom N. Freeman
When guard-mounting assembly sounded at nine the next morning Sergeant Hal Overton marched the new guard on to the field.
"Uncle Sam's Boys as Sergeants" by H. Irving Hancock
On this morning, after the formation of the guard, and inspection, the post adjutant stepped forward.
"Uncle Sam's Boys in the Ranks" by H. Irving Hancock
I explained to her the situation, and added that Pye would be placed on guard.
"Hurricane Island" by H. B. Marriott Watson
I had, however, been on my guard after a fashion.
"The Cryptogram" by James De Mille
A patrol guard was quickly formed, and sentinels were stationed on the south and west.
"The Price of the Prairie" by Margaret Hill McCarter
Each went back to his own unit, more on guard then ever before for the slightest hint of irregularity in personnel or equipment.
"The Scarlet Lake Mystery" by Harold Leland Goodwin
One day Peleg was on guard in the adjacent forest.
"Scouting with Daniel Boone" by Everett T. Tomlinson
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In poetry:

Lord, when thou didst ascend on high,
Ten thousand angels filled the sky;
Those heav'nly guards around thee wait,
Like chariots that attend thy state.
"Psalm 68 part 2" by Isaac Watts
The distant hills, robed in violet mist
Of the heavenly hues partake,
As they stand, with the sunlight crowned and kissed,
On guard round the beautiful lake.
"The Lake Allumette" by Nora Pembroke
But on their deeds no shade shall fall,
While o'er their couch thy sun shall flame;
Thine ear was bowed to hear their call,
And thy right hand shall guard their fame.
"Hymns and Odes V" by John Pierpont
Be therefore, like a warrior, still prepar'd,
And never fail thy panoply to wear,
And on thy actions keep a constant guard —
Lest Satan shou'd thy soul in pieces tear.
"Advice, To Guard Against The Temptations Of The Devil " by Rees Prichard
Then on the statue, graven with holy smiles,
There came another smile--tremendous--one
Of an Egyptian god. 'Why should you rise?
'Do I not guard your secret from the sun?
"A Man And His Image" by Gilbert Keith Chesterton
As a little child relies
On a care beyond his own;
Knows he's neither strong no wise;
Fears to stir a step alone;
Let me thus with Thee abide,
As my Father, Guard, and Guide.
"Quiet, Lord, My Froward Heart" by John Newton

In news:

The Presidio of Monterey has been on guard for a week.
Waterford Speedbowl was in action on Saturday of Labor Day weekend with its annual Thunder on the Sound event, presented by The Connecticut National Guard.
An outbreak of a bacterial infection in Stephenson County has health officials on guard, urging residents to help slow the spread of Shigella .
(Associated Press) Kansas guard Travis Releford drives to the basket past the defense of Michigan State guard Gary Harris during the first half of a game at the Georgia Dome in Atlanta on Tuesday.
When the teller is a forger, a liar, and a thief who admits that nothing he says can be believed, you're on guard.
Pentagon Ends Time Limit On Guard, Reserve.
Warnings Unheeded On Guards In Iraq.
The Toronto Raptors are on the verge of acquiring guard Kyle Lowry from the Houston Rockets, according to sources briefed on the discussions.
John Shulman adds walk- on guard Alex Bran.
GOP again criticizing Obama on Guard cuts.
Brand patrol on guard .
Brand patrol on guard in London.
GOP is always on guard for Wall Street and the banksters.
Authorities on guard for terror threats over holiday.
Ahead of this July 4th holiday, law enforcement in major US cities is on guard for terror threats.
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In science:

Alternately, the devices in th e guard-band region may be deemed as good or bad, or even classified to be of lower grade based on th e quality requirements of th e application. 4.3.
Specification Test Compaction for Analog Circuits and MEMS
This measurement was performed without any filter and hence corresponds to the noise that will be seen on the HV guard line under normal operation.
Characterisation of the VELO High Voltage System
Although and [10, 11] seem to define different fairness varieties, there is a correspondence between some notions in the two approaches (up to the language on which the study is based): guard fairness corresponds to fairness of actions, while process fairness corresponds to fairness of components.
Explicit fairness in testing semantics
On the contrary, in other approaches, like for instance , the guards that come back are precisely the ob ject of weak fairness.
Explicit fairness in testing semantics
The paper presents a syntactic abstraction method for guarded command programs based on assignment substitution.
Syntactic Abstraction of B Models to Generate Tests
Functions source(t ), t arget (t ), guard (t ), u pd at e(t ) and out (l ) ⊆ T on I/O EFSMs serve as a shorthand reference to source and target location, guard condition and update function of a transition t and the set of outgoing transitions from location l respectively.
Constraint-Based Heuristic On-line Test Generation from Non-deterministic I/O EFSMs
Output variables that model the parameters of output can only occur in the left hand sides of updates. A transition (l , i, o, g, u, l (cid:48) ) is enabled and can be taken when an input i is received and guard g evaluates to t rue on the current state and values of the input parameters.
Constraint-Based Heuristic On-line Test Generation from Non-deterministic I/O EFSMs
On average, transition guards in this model consist of 20 state and input variables connected with logic and arithmetic operations.
Constraint-Based Heuristic On-line Test Generation from Non-deterministic I/O EFSMs
Note that all markers are (cid:62) since the guard on y faithfully represented the ones on x.
Off-line test selection with test purposes for non-deterministic timed automata
As soon as the next node on the path is guarded by a non-trivial condition, the Constraint Generator is called and resolves all pointers and array references occurring in this condition.
CTGEN - a Unit Test Generator for C
Our expansion and selection strategies are motivated as follows: (a) The larger the explored range of the variable values participating in the guard conditions closest to the start node, the higher the probability to cover more branches depending on these variables further down the CFG.
CTGEN - a Unit Test Generator for C
They present the system testing using use cases. The major limitation of their proposed work is absence of formalized test case generation based on control flow with guards.
A use case driven approach for system level testing
The third property requires that if two fragments are nested the parent fragment must contain all events of its child fragments. A sequence diagram can also contain a number of variables X and expressions E x p which are used on messages and fragments as guards.
Sequence Diagram Test Case Specification and Virtual Integration Analysis using Timed-Arc Petri Nets
If two or more nets have to synchronize on a common transition the ages of these token must still fulfill their guards even if the token have to wait additional time for the synchronization.
Sequence Diagram Test Case Specification and Virtual Integration Analysis using Timed-Arc Petri Nets
In this section, we introduce alternating automata on undirected graphs. A similar model, namely alternating two-way automata on infinite trees, was used by Gr¨adel and Walukiewicz in their decision procedure for satisfiability of guarded fixpoint logic.
Finite Satisfiability for Guarded Fixpoint Logic
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