Air level
() Spirit level. See Level. |
Level
(n.) A line or surface to which, at every point, a vertical or plumb line is perpendicular |
Level
(n.) A horizontal line or plane |
Level
(n.) An approximately horizontal line or surface at a certain degree of altitude, or distance from the center of the earth |
Level
(n.) Hence, figuratively, a certain position, rank, standard, degree, quality, character, etc., conceived of as in one of several planes of different elevation. |
Level
(n.) A uniform or average height |
Level
(n.) An instrument by which to find a horizontal line, or adjust something with reference to a horizontal line. |
Level
(n.) A measurement of the difference of altitude of two points, by means of a level |
Level
(n.) A horizontal passage, drift, or adit, in a mine. |
Level
(a.) Even |
Level
(a.) Coinciding or parallel with the plane of the horizon |
Level
(a.) Even with anything else |
Level
(a.) Straightforward |
Level
(a.) Well balanced |
Level
(a.) Of even tone |
Level
(v. t.) To make level |
Level
(v. t.) To bring to a lower level |
Level
(v. t.) To bring to a horizontal position, as a gun |
Level
(v. t.) Figuratively, to bring to a common level or plane, in respect of rank, condition, character, privilege, etc. |
Level
(v. t.) To adjust or adapt to a certain level |
Level
(v. i.) To be level |
Level
(v. i.) To aim a gun, spear, etc., horizontally |
Sea level
() The level of the surface of the sea |
Security
(n.) The condition or quality of being secure |
Security
(n.) Freedom from apprehension, anxiety, or care |
Security
(n.) Hence, carelessness |
Security
(n.) Freedom from risk |
Security
(n.) That which secures or makes safe |
Security
(n.) Something given, deposited, or pledged, to make certain the fulfillment of an obligation, the performance of a contract, the payment of a debt, or the like |
Security
(n.) One who becomes surety for another, or engages himself for the performance of another's obligation. |
Security
(n.) An evidence of debt or of property, as a bond, a certificate of stock, etc. |
Water level
() The level formed by the surface of still water. |
Water level
() A kind of leveling instrument. See under Level, n. |
Y level
() See under Y, n. |
terrain flight
low level flight | flight at very low altitudes |
| security intelligence | intelligence on the identity and capability and intentions of hostile individuals or organizations that may be engaged in espionage or sabotage or subversion or terrorism |
| censoring censorship security review | counterintelligence achieved by banning or deleting any information of value to the enemy |
security
security measures | measures taken as a precaution against theft or espionage or sabotage etc., military security has been stepped up since the recent uprising |
blood-oxygenation level dependent functional magnetic resonance imaging
BOLD FMRI | functional magnetic resonance imaging that relies on intrinsic changes in hemoglobin oxygenation |
| Social Security | social welfare program in the U.S., includes old-age and survivors insurance and some unemployment insurance and old-age assistance |
| Abney level | a surveying instrument consisting of a spirit level and a sighting tube, used to measure the angle of inclination of a line from the observer to the target |
| carpenter's level | a straight bar of light metal with a spirit level in it |
| Dumpy level | a surveyor's level having a short telescope fixed to a horizontally rotating table and a spirit level |
floor level storey
story | a structure consisting of a room or set of rooms at a single position along a vertical scale, what level is the office on? |
ground floor
first floor
ground level | the floor of a building that is at or nearest to the level of the ground around the building |
horizontal surface
level | a flat surface at right angles to a plumb line, park the car on the level |
level
spirit level | indicator that establishes the horizontal when a bubble is centered in a tube of liquid |
level crossing
grade crossing | intersection of a railway and a road on the same level, barriers close road when trains pass |
| mason's level | a level longer than a carpenter's level |
| plumb level | a carpenter's level with a plumb line at right angles to it |
| security blanket | a blanket (or toy) that a child carries around in order to reduce anxiety |
| security blanket | anything that an adult person uses to reduce anxiety |
security system
security measure
security | an electrical device that sets off an alarm when someone tries to break in |
| security system | (computing) a system that enforces boundaries between computer networks |
| surveyor's level | surveying instrument consisting basically of a small telescope with an attached spirit level rotating around a vertical axis, for measuring relative heights of land |
| water level | a water gauge that shows the level by showing the surface of the water in a trough or U-shaped tube |
luminosity
brightness brightness level
luminance
luminousness
light | the quality of being luminous, emitting or reflecting light, its luminosity is measured relative to that of our sun |
degree
grade
level | a position on a scale of intensity or amount or quality, a moderate grade of intelligence, a high level of care is required, it is all a matter of degree |
| amplitude level | the level on a scale of amplitude |
| signal level | the amplitude level of the desired signal |
noise level
background level | the amplitude level of the undesired background noise |
| intensity strength intensity level | the amount of energy transmitted (as by acoustic or electromagnetic radiation), he adjusted the intensity of the sound, they measured the station's signal strength |
| threshold level | the intensity level that is just barely perceptible |
acoustic power
sound pressure level | the physical intensity of sound |
utmost
uttermost
maximum
level best | the greatest possible degree, he tried his utmost |
| level | height above ground, the water reached ankle level, the pictures were at the same level |
| grade ground level | the height of the ground on which something stands, the base of the tower was below grade |
| water level | the level of the surface of a body of water |
| sea level | level of the ocean's surface (especially that halfway between mean high and low tide), used as a standard in reckoning land elevation or sea depth |
level
layer
stratum | an abstract place usually conceived as having depth, a good actor communicates on several levels, a simile has at least two layers of meaning, the mind functions on many strata simultaneously |
| Social Security number | the number of a particular individual's Social Security account |
| high-level formatting | (computer science) the format for the root directory and the file allocation tables and other basic configurations |
low-level formatting
initialization
initialisation | (computer science) the format of sectors on the surface of a hard disk drive so that the operating system can access them and setting a starting position |
price index
price level | an index that traces the relative changes in the price of an individual good (or a market basket of goods) over time |
security
surety | a guarantee that an obligation will be met |
| high-level language | a problem-oriented language requiring little knowledge of the computer on which it will be run |
| security | freedom from anxiety or fear, the watch dog gave her a feeling of security |
security
security department | a department responsible for the security of the institution's property and workers, the head of security was a former policeman |
National Security Council
NSC | a committee in the executive branch of government that advises the president on foreign and military and national security, supervises the Central Intelligence Agency |
Social Security Administration
SSA | an independent government agency responsible for the Social Security system |
Department of Homeland Security
Homeland Security | the federal department that administers all matters relating to homeland security |
Bureau of Diplomatic Security
DS | the bureau in the State Department that is responsible for the security of diplomats and embassies overseas |
Transportation Security Administration
TSA | an agency established in to safeguard United States transportation systems and insure safe air travel |
security force
private security force | a privately employed group hired to protect the security of a business or industry |