• ___ 51

• ___ 51 (Groom Lake, NV)

• ___ 51 (Groom Lake)

• ___ 51 (Nevada military base)

• ___ 51 (secretive site)

• ___ 51 (supposed military hiding place for UFOs)

• ___ 51, supposed Nevada UFO cover-up site

• ___ code

• ___ code (long-distance need)

• ___ code (part of a phone number)

• ___ code (part of a telephone number)

• ___ code (phone number starter)

• ___ code (three-digit number)

• ___ Doria

• ___ man

• ___ man (frequent article subject in The Onion)

• ___ of expertise

• ___ rug

• ___ rug (small floor covering)

• .17 square miles, for Vatican City

• 'Hood

• (Base x height) / 2, for a triangle

• 1/2 b X h, for a right triangle

• 1/2 b X h, for a triangle

• 1/2 base x height, for a triangle

• 109 acres, for Vatican City

• 2-D extent

• 2-D measure

• 2-D measurement

• 213, e.g.

• 22,178 square miles, for Lake Michigan

• 4,700 square feet, for a basketball court

• 51 is a mysterious one

• 51 is one

• 51, famously

• 51, for one

• A code we live by

• A great lot may cover a lot

• A in geometry

• About 2.6 times the square of the length of one side, for a regular hexagon

• About 64 million square miles, for the Pacific

• Academic field

• Academic specialty

• Acre, e.g.

• Acreage

• Alaska's is 586,412 square miles

• Alaska's is nearly 600,000 square miles

• Alaska's is over 550,000 square miles

• Allan Holdsworth Hard Hat ___

• Allotted space

• Almanac datum

• Amount of space

• An A in geometry?

• An acre's 43,560 square feet

• Apartment buyer's concern

• Apartment listing datum

• Atlas datum

• Atlas figure

• Atlas stat

• Atlas statistic

• Backstage, for example

• Backstage, for one

• Bailiwick

• BART part

• Base times half the height, for triangles

• Base times height

• Base times height halved, for a triangle

• Base times height, for a parallelogram

• Base times height, for a rectangle

• Base x height, for a parallelogram

• Basketball court's restricted ___, or key

• Bay ___

• Bay ___ (San Francisco's locale)

• Bay ___, Barry Bonds' domain

• Bay ___, Giants' domain

• Bay ___, where Barry Bonds plays

• Bay or gray follower

• Belt

• Blueprint datum

• Breadth times depth

• Broadloom calculation

• Broca's ___ (part of the brain)

• Builder's concern

• Bullpen ___

• Calculation for a tiler

• Calculus calculation

• Calculus class calculation

• Calculus computation

• Caller's code

• Carpenter's measurement

• Carpentry calculation

• Carpet buyer's calculation

• Carpet calculation

• Carpet computation

• Carpet coverage

• Carpet cutter's calculation

• Carpet installer's calculation

• Carpet layer's measurement

• Carpet measure

• Carpet measurement

• Carpet seller's calculation

• Carpet store calculation

• Carpet store computation

• Carpet-layer's calculation

• Carpet-layer's concern

• Carpeting (and carpentering) calculation

• Carpeting calculation

• Carpeting measurement

• Certain code

• Circle

• Circle figure

• Circle statistic

• City block

• Clear the ___!

• Code beginning?

• Code kind

• Code lead-in

• Code name?

• Code of a sort

• Code or rug

• Code or way

• Code preceder

• Code predecessor

• Code start

• Code subject

• Code that's not a secret

• Code type

• Code we live by?

• Code word

• Common code

• Community

• Compass

• Concentration of study

• Confines

• Conspiracy buff's 51

• Cordoned-off space

• Country statistic

• Country's encyclopedia info

• Crop duster's calculation

• Defined place

• Department

• Designated ___

• Designated place

• Diamonds ___ Girl's Best Friend

• Dimension never shared by both a square and a circle

• Dimensions

• Disaster ___

• Disaster follower

• Discipline

• District

• District or section

• Domain

• Doria or del Sarto

• Enclosed surface

• English word from the Latin for courtyard

• Environ

• Euclidean finding

• Expanse

• Extent

• Fertilizer-spreader's calculation

• Field

• Field hidden in five puzzle answers

• Field of expertise

• Field of interest

• Field of knowledge

• Field of study

• Field of work

• Field or field of expertise

• Figure in a title search

• Figure in geometry

• Finding in geometry

• Floor measure

• Floor space

• Floor space measure

• Floor space, e.g.

• Floor-space figure

• Flooring calculation

• Flooring measure

• Flooring measurement

• Florida's is 58,560 square miles

• Focus of study

• For a rectangle, it's length X width

• For a square, it's the square of the side

• Forte

• Forte, so to speak

• Futureheads bonus track off News and Tributes

• Futureheads News And Tributes bonus track

• Futureheads song off News and Tributes

• Gang's turf, say

• Gardener's plot outline

• Gazetteer data

• Gazetteer fact

• Gazetteer figure

• Gazetteer info

• Gazetteer item

• Gazetteer stat

• Gazetteer statistic

• Gazetter datum

• General confines

• General location

• General region

• General vicinity

• Geographer's statistic

• Geographic region

• Geographical datum

• Geographical dictionary listing

• Geographical info

• Geographical statistic

• Geometer's calculation

• Geometer's find

• Geometer's finding

• Geometer's or geographer's statistic

• Geometer's product

• Geometric calculation

• Geometric determination

• Geometric extent

• Geometric figure

• Geometric finding

• Geometric formula result

• Geometric measure

• Geometric product

• Geometrician's calculation

• Geometrician's figuring

• Geometrician's finding

• Geometry 101 datum

• Geometry class calculation

• Geometry class measurement

• Geometry computation

• Geometry concern

• Geometry datum

• Geometry number

• Geometry problem

• Geometry subject

• Geometry test answer, at times

• Geometry test answer, perhaps

• Geometry topic

• Giordano opera ___Chenier

• Gray ___ (moralist's dilemma)

• Gray ___ (unclear situation)

• Grounds

• Half the base times the height, for a triangle

• Hectarage

• Height times width

• Hell's Kitchen, e.g.

• High pressure ___

• House listing info

• House painter's calculation

• In a rhombus, half the product of its diagonal lengths

• Info in a real estate ad

• Info in an apartment ad

• Inner space

• Integration calculation

• Interior space

• Interior space calculation

• It can be calculated after a survey

• It can be calculated after taking a survey

• It can be measured in square feet

• It can be measured in square yards

• It comes before code or rug

• It could be gray

• It could be restricted

• It equals L x W

• It has a code

• It lacks depth

• It may be gray

• It may be restricted

• It may be restricted on a military base

• It may have a code

• It might be gray

• It might be restricted

• A particular environment or walk of life

• The extent of a 2-dimensional surface enclosed within a boundary

• A part of an animal that has a special function or is supplied by a given artery or nerve

• A subject of study

• A particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)

• A part of a structure having some specific characteristic or function

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