*adjective:*- Specified by or exhibiting four measurements, for instance the three spatial measurements and single temporal dimension of relativity theory.

- Having four dimensions; becoming measurable along four mutually perpendicular axes.
- specific by or exhibiting four proportions, such as the three spatial proportions and solitary temporal dimension of relativity concept.
- concerning the four proportions of space-time (three spatial measurements with the addition of time because the fourth)
- Having four dimensions; becoming measurable along four mutually perpendicular axes.
- involving or concerning the fourth dimension or time
- concerning the four proportions of space-time (three spatial proportions by adding time given that fourth)
- involving or regarding the fourth dimension or time
- specific by or displaying four proportions, for instance the three spatial proportions and single temporal measurement of relativity principle.
- Specified by or exhibiting four measurements, including the three spatial measurements and solitary temporal measurement of relativity concept.
- Having four dimensions; becoming measurable along four mutually perpendicular axes.
- Having four measurements; becoming measurable along four mutually perpendicular axes.
- concerning the four proportions of space-time (three spatial measurements with the help of time as the 4th)
- certain by or exhibiting four dimensions, such as the three spatial dimensions and solitary temporal dimension of relativity theory.
- regarding the four proportions of space-time (three spatial dimensions by adding time once the 4th)
- concerning or regarding the 4th dimension or time
- Having four dimensions; becoming measurable along four mutually perpendicular axes.
- involving or regarding the 4th dimension or time
- concerning the four proportions of space-time (three spatial proportions with the help of time as the fourth)
- concerning or regarding the 4th measurement or time
- Specified by or exhibiting four proportions, such as the three spatial proportions and single temporal dimension of relativity principle.
- Specified by or displaying four measurements, such as the three spatial proportions and single temporal dimension of relativity concept.
- Specified by or displaying four measurements, like the three spatial dimensions and single temporal dimension of relativity concept.
- Having four proportions; being measurable along four mutually perpendicular axes.
- Having four measurements; becoming measurable along four mutually perpendicular axes.
- Having four dimensions; becoming measurable along four mutually perpendicular axes.
- Specified by or displaying four dimensions, for instance the three spatial dimensions and single temporal dimension of relativity principle.
- concerning the four measurements of space-time (three spatial proportions by adding time whilst the fourth)
- Relating to the four measurements of space-time (three spatial proportions by the addition of time because the 4th)
- concerning the four measurements of space-time (three spatial measurements with the help of time because the 4th)
- Having four measurements; being measurable along four mutually perpendicular axes.
- involving or concerning the 4th dimension or time
- concerning or concerning the 4th dimension or time
- involving or concerning the 4th measurement or time
- concerning the four measurements of space-time (three spatial measurements with the addition of time given that fourth)
- concerning or regarding the fourth dimension or time

## How would you define four-dimensional?