A specific (specified) period of time.
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 gap; an empty place.
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 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.
A scheduled part of a calendar year spent in a specific activity.
A Julian year, exactly 365.25 days, represented by "a".
The proportion of a creature's lifespan equivalent to one year of an average human lifespan (see also dog year).
A period between set dates that mark a year, from January 1 to December 31 by the Gregorian calendar, from Tishiri 1 to Elul 29 by the Jewish calendar, and from Muharram 1 to Dhu al-Hijjah 29 or 30 by the Islamic calendar.
A level or grade in school or college.
A solar year, the time it takes the Earth to complete one revolution of the Sun (between 365.24 and 365.26 days depending on the point of reference).
The time it takes for any astronomical object (such as a planet, dwarf planet, small Solar System body, or comet) in direct orbit around a star (such as the Sun) to make one revolution around the star.