Before hiring a moving company to bring a grand piano into your studio apartment, you should measure how much space you actually have available.

Space, along with time, is one of the basic concepts of reality, but there are plenty of non-philosophical ways to use it. Don't let your dog sleep in the bed — she'll take up too much space. There's a space between each of these words. If you're into rockets, you probably want to travel in space, beyond the earth's atmosphere. A space in your day is free time. (Weird, right?) The root word spatium means "area covered" in Latin.

Definitions of space
  1. noun
    the unlimited expanse in which everything is located
    “they tested his ability to locate objects in space
    synonyms: infinite
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    absolute space
    physical space independent of what occupies it
    phase space
    (physics) an ideal space in which the coordinate dimensions represent the variables that are required to describe a system or substance
    mathematical space, topological space
    (mathematics) any set of points that satisfy a set of postulates of some kind
    outer space
    any location outside the Earth's atmosphere
    dynamical system
    (physics) a phase space together with a transformation of that space
    a space that is contained within another space
    null space
    a space that contains no points; and empty space
    a set of points such as those of a closed surface or an analogue in three or more dimensions
    metric space
    a set of points such that for every pair of points there is a nonnegative real number called their distance that is symmetric and satisfies the triangle inequality
    type of:
    an abstraction belonging to or characteristic of an entity
  2. noun
    any location outside the Earth's atmosphere
    “the first major milestone in space exploration was in 1957, when the USSR's Sputnik 1 orbited the Earth”
    synonyms: outer space
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    type of:
    a point or extent in space
    the unlimited expanse in which everything is located
  3. noun
    a blank area
    “write your name in the space provided”
    synonyms: blank space, place
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    the blank space that surrounds the text on a page
    indent, indentation, indention, indenture
    the space left between the margin and the start of an indented line
    type of:
    area, expanse, surface area
    the extent of a 2-dimensional surface enclosed within a boundary
  4. noun
    an empty area (usually bounded in some way between things)
    “the architect left space in front of the building”
    “they stopped at an open space in the jungle”
    “the space between his teeth”
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    a space into which an area is subdivided
    crenel, crenelle
    a notch or open space between two merlons in a crenelated battlement
    pleural space
    the small potential space between the parietal and visceral layers of the pleura
    subarachnoid space
    a space in the meninges beneath the arachnoid membrane and above the pia mater that contains the cerebrospinal fluid
    enclosure, natural enclosure
    a naturally enclosed space
    a wide and open space or area as of surface or land or sky
    gap, opening
    an open or empty space in or between things
    the space created by the swing of a scythe or the cut of a mowing machine
    the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians
    emptiness, vacancy, vacuum, void
    an empty area or space
    an unoccupied space
    cavity, enclosed space
    space that is surrounded by something
    (bowling) the space between the headpin and the pins behind it on the right or left
    any small compartment
    cubbyhole, pigeonhole
    a small compartment
    an opening at the corner or on the side of a billiard table into which billiard balls are struck
    PO Box, POB, Post-Office box, call box, letter box
    a numbered compartment in a post office where mail is put to be called for
    a gap or vacant space between two teeth
    Ranvier's nodes, nodes of Ranvier
    small gaps in the myelin sheath of medullated axons
    foramen, hiatus
    a natural opening or perforation through a bone or a membranous structure
    crotch, fork
    the angle formed by the inner sides of the legs where they join the human trunk
    an opening (especially a gap in a dike or fortification)
    any large dark enclosed space
    a deep opening in the earth's surface
    cleft, crack, crevice, fissure, scissure
    a long narrow opening
    an opening into or through something
    an enclosure within which something originates or develops (from the Latin for womb)
    an opening that resembles a mouth (as of a cave or a gorge)
    a gap between cloud masses
    rent, rip, snag, split, tear
    an opening made forcibly as by pulling apart
    any broad thin expanse or surface
    a large and unbroken expanse or distance
    an opening that resembles a window in appearance or function
    the upper angle between an axis and an offshoot such as a branch or leafstalk
    helix angle
    the constant angle at which a helix cuts the elements of a cylinder or cone
    complementary angles
    two angles whose sum is a right angle
    angular distance
    the angular separation between two objects as perceived by an observer
    plane angle
    an angle formed by two straight lines (in the same plane)
    spherical angle
    an angle formed at the intersection of the arcs of two great circles
    solid angle
    an angle formed by three or more planes intersecting at a common point (the vertex)
    angle of inclination, inclination
    (geometry) the angle formed by the x-axis and a given line (measured counterclockwise from the positive half of the x-axis)
    inclination, inclination of an orbit
    (astronomy) the angle between the plane of the orbit and the plane of the ecliptic stated in degrees
    salient angle
    an angle pointing outward; an interior angle of a polygon that is less than 180 degrees
    interior angle, internal angle
    the angle inside two adjacent sides of a polygon
    exterior angle, external angle
    the supplement of an interior angle of a polygon
    angle of incidence, incidence angle
    the angle that a line makes with a line perpendicular to the surface at the point of incidence
    angle of reflection
    the angle between a reflected ray and a line perpendicular to the reflecting surface at the point of incidence
    angle of refraction
    the angle between a refracted ray and a line perpendicular to the surface between the two media at the point of refraction
    angle of extinction, extinction angle
    the angle from its axis that a crystal must be rotated before appearing maximally dark when viewed in polarized light
    angle that resembles the hind leg of a dog
    right angle
    the 90 degree angle between two perpendicular lines
    oblique angle
    an angle that is not a right angle or a multiple of a right angle
    reflex angle
    an angle greater than 180 degrees (but less than 360)
    perigon, round angle
    an angle of 360 degrees
    cutting angle
    the angle between the face of a cutting tool and the surface of the work
    angle of dip, dip, inclination, magnetic dip, magnetic inclination
    (physics) the angle that a magnetic needle makes with the plane of the horizon
    the angle between the direction a gun is aimed and the position of a moving target (correcting for the flight time of the missile)
    magnetic declination, magnetic variation, variation
    the angle (at a particular location) between magnetic north and true north
    AZ, azimuth
    the azimuth of a celestial body is the angle between the vertical plane containing it and the plane of the meridian
    a cavity or space in something
    any tiny hole admitting passage of a liquid (fluid or gas)
    pocket, pouch, sac, sack
    an enclosed space
    polyhedral angle
    the space enclosed by three or more planes that intersect in a vertex
    face angle
    the angle formed by two edges of a polyhedral angle
    tilt angle
    the angle a rocket makes with the vertical as it curves along its trajectory
    vertical angle
    either of two equal and opposite angles formed by the intersection of two straight lines
    angle of view, view angle
    the angle included by a photographic lens
    wave angle
    the angle of arrival (or departure) of a radio wave with respect to the axis of an antenna array
    supplementary angles
    two angles whose sum is 180 degrees
    type of:
    a point or extent in space
    amorphous shape
    an ill-defined or arbitrary shape
  5. noun
    an area reserved for some particular purpose
    “the laboratory's floor space
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    air space, airspace
    the space in the atmosphere immediately above the earth
    crawl space, crawlspace
    low space beneath a floor of a building; gives workers access to wiring or plumbing
    disc space, disk space
    (computer science) the space available on a magnetic disk
    (theater) the space over the stage (out of view of the audience) used to store scenery (drop curtains)
    key, paint
    (basketball) a space (including the foul line) in front of the basket at each end of a basketball court; usually painted a different color from the rest of the court
    no-parking zone
    a space where automobiles are not allowed to park
    parking space, parking zone
    a space where an automobile can be parked
    the space where a division or parting occurs
    place, seat
    a space reserved for sitting (as in a theater or on a train or airplane)
    level space where heavy guns can be mounted behind the parapet at the top of a rampart
    space allocated for your work (as in an office)
    disk overhead, overhead
    (computer science) the disk space required for information that is not data but is used for location and timing
    swap file, swap space
    the disk space that is set aside for virtual memory
    an elevated place serving as a seat
    type of:
    area, country
    a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)
  6. noun
    the interval between two times
    “it all happened in the space of 10 minutes”
    synonyms: distance
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    type of:
    interval, time interval
    a definite length of time marked off by two instants
  7. verb
    place at intervals
    Space the interviews so that you have some time between the different candidates”
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    type of:
    lay, place, pose, position, put, set
    put into a certain place or abstract location
  8. noun
    a blank character used to separate successive words in writing or printing
    “he said the space is the most important character in the alphabet”
    synonyms: blank
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    type of:
    character, grapheme, graphic symbol
    a written symbol that is used to represent speech
  9. noun
    (printing) a block of type without a raised letter; used for spacing between words or sentences
    synonyms: quad
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    hair space
    (printing) the narrowest of the spaces used to separate words or letters
    type of:
    a small metal block bearing a raised character on one end; produces a printed character when inked and pressed on paper
  10. noun
    one of the areas between or below or above the lines of a musical staff
    “the spaces are the notes F-A-C-E”
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    type of:
    area, expanse, surface area
    the extent of a 2-dimensional surface enclosed within a boundary
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