- Types:
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long measure
a measure of length
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astronomy unit
a linear unit used for astronomical distances
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metric linear unit
a linear unit of distance in metric terms
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nautical linear unit
a linear unit of distance used in navigation
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in, inch
a unit of length equal to one twelfth of a foot
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foot, ft
a linear unit of length equal to 12 inches or a third of a yard
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footer
(used only in combinations) the height or length of something in feet
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pace, yard
a unit of length equal to 3 feet; defined as 91.44 centimeters; originally taken to be the average length of a stride
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yarder
(used only in combinations) the height or length of something in yards
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perch, pole, rod
a linear measure of 16.5 feet
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furlong
a unit of length equal to 220 yards
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international mile, land mile, mi, mile, stat mi, statute mile
a unit of length equal to 1,760 yards or 5,280 feet; exactly 1609.344 meters
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miler
(used only in combinations) the length of something in miles
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880 yards, half mile
a unit of length equal to half of 1 mile
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440 yards, quarter mile
a unit of length equal to a quarter of 1 mile
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league
an obsolete unit of distance of variable length (usually 3 miles)
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ligne
a linear unit (1/40 inch) used to measure diameter of buttons
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nail
a former unit of length for cloth equal to 1/16 of a yard
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archine
a Russian unit of length (71 cm)
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coss, kos
(in India) a unit of length having different values in different localities
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vara
a Spanish unit of length (about a yard) having different values in different localities
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verst
a Russian unit of length (1.067 km)
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cable, cable length, cable's length
a nautical unit of depth
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chain
a unit of length
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cubit
an ancient unit of length based on the length of the forearm
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digit, finger, finger's breadth, fingerbreadth
the length of breadth of a finger used as a linear measure
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fistmele
about seven inches; the breadth of a fist with the thumb stuck out (used especially in archery to give the correct distance of the string from the bow)
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body length
the length of your body
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handbreadth, handsbreadth
any unit of length based on the breadth of the human hand
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head
the length or height based on the size of a human or animal head
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lea
a unit of length of thread or yarn
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li
Chinese distance measure; approximately 0.5 kilometers
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link
a unit of length equal to 1/100 of a chain
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mesh
the number of openings per linear inch of a screen; measures size of particles
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mil
a unit of length equal to one thousandth of an inch; used to specify thickness (e.g., of sheets or wire)
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Swedish mile, mil, mile
a Swedish unit of length equivalent to 10 km
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Roman mile, mile
an ancient Roman unit of length equivalent to 1620 yards
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Roman pace
an ancient Roman unit of length (4.85 English feet) measured as the distance from the heel of one foot to the heel of the same foot when next it touches the ground
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geometric pace
a modern version of the Roman pace now taken to be 5 feet
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military pace
the length of a single step in marching (taken to be 30 inches for quick time or 36 inches for double time)
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palm
a linear unit based on the length or width of the human hand
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span
a unit of length based on the width of the expanded human hand (usually taken as 9 inches)
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survey mile
a U.S. unit of measure equal to 1609.347 meters; derived from the use of 39.37 inches as the conversion for one meter
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fathom, fthm
a linear unit of measurement (equal to 6 feet) for water depth
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point
a linear unit used to measure the size of type; approximately 1/72 inch
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em, pica, pica em
a linear unit (1/6 inch) used in printing
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en, nut
half the width of an em
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cicero
a linear unit of the size of type slightly larger than an em
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Gunter's chain
a unit of length (22 yards)
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engineer's chain
a unit of length (100 ft)
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hand
a unit of length equal to 4 inches; used in measuring horses
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light year, light-year
the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers
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light hour
the distance light travels in a vacuum in one hour; approximately one billion kilometers
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light minute
the distance light travels in a vacuum in one minute; approximately 18 million kilometers
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light second
the distance light travels in a vacuum in one second; approximately 300,000 kilometers
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AU, Astronomical Unit
a unit of length used for distances within the solar system; equal to the mean distance between the Earth and the Sun (approximately 93 million miles or 150 million kilometers)
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parsec, secpar
a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years
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femtometer, femtometre, fermi
a metric unit of length equal to one quadrillionth of a meter
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micromicron, picometer, picometre
a metric unit of length equal to one trillionth of a meter
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A, angstrom, angstrom unit
a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
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micromillimeter, micromillimetre, millimicron, nanometer, nanometre, nm
a metric unit of length equal to one billionth of a meter
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micrometer, micron
a metric unit of length equal to one millionth of a meter
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millimeter, millimetre, mm
a metric unit of length equal to one thousandth of a meter
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centimeter, centimetre, cm
a metric unit of length equal to one hundredth of a meter
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decimeter, decimetre, dm
a metric unit of length equal to one tenth of a meter
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m, meter, metre
the basic unit of length adopted under the Systeme International d'Unites (approximately 1.094 yards)
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dam, decameter, decametre, dekameter, dekametre, dkm
a metric unit of length equal to ten meters
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hectometer, hectometre, hm
a metric unit of length equal to 100 meters
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kilometer, kilometre, klick, km
a metric unit of length equal to 1000 meters (or 0.621371 miles)
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mym, myriameter, myriametre
a metric unit of length equal to 10,000 meters
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nautical chain
a nautical unit of length (15 ft)
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air mile, international nautical mile, knot, mi, mile, naut mi, nautical mile
a unit of length used in navigation; exactly 1,852 meters; historically based on the distance spanned by one minute of arc in latitude
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Admiralty mile, geographical mile, mi, mile, naut mi, nautical mile
a former British unit of length equivalent to 6,080 feet (1,853.184 meters); 800 feet longer than a statute mile
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mile, sea mile
a former British unit of length once used in navigation; equivalent to 6,000 feet (1828.8 meters)
