The free-throw lane together with the circle surrounding the free-throw line; key.
A mortise for a key or cotter.
A gravitational keyhole.
Any small opening resembling the hole for a key in shape or function.
A hole or excavation in beams intended to be joined together, to receive the key that fastens them.
A transient column of vapor or plasma formed when using high energy beams, such as lasers, for welding or cutting.
The hole in a lock where the key is inserted and turns.
A circle cut out of a garment as a decorative effect, typically at the front or back neckline of a dress.
A welding method in which a hole forms in the surface immediately ahead of the puddle in the direction of welding. The hole is filled as the weld progresses.
To strike a target after wobbling in flight so that the long axis of the bullet does not follow the line of flight, typically due to insufficient spin resulting from the rifling in the barrel.
A gap; an empty place.
A (chiefly empty) area or volume with set limits or boundaries.
Physical extent across two or three dimensions (sometimes for or to do something).
A set of points, each of which is uniquely specified by a number (the dimensionality) of coordinates.
A field, area, or sphere of activity or endeavour.
A piece of metal type used to separate words, cast lower than other type so as not to take ink, especially one that is narrower than one en (compare quad).
An undefined period of time (without qualifier, especially a short period); a while.
The physical and psychological area one needs within which to live or operate; personal freedom.
Distance between things.
A generalized construct or set whose members have some property in common; typically there will be a geometric metaphor allowing these members to be viewed as "points". Often used with a restricting modifier describing the members (e.g. vector space), or indicating the inventor of the construct (e.g. Hilbert space).
The near-vacuum in which planets, stars and other celestial objects are situated; the universe beyond the earth's atmosphere.
A specific (specified) period of time.
A position on the staff or stave bounded by lines.
Physical extent in all directions, seen as an attribute of the universe (now usually considered as a part of space-time), or a mathematical model of this.
A gap in text between words, lines etc., or a digital character used to create such a gap.
Anything analogous to a physical space in which one can interact, such as an online chat room.
To insert or utilise spaces in a written text.
To set some distance apart.
To eject into outer space, usually without a space suit.
To travel into and through outer space.