An abstract sphere of infinite radius which serves as the imaginary backdrop for celestial objects, and of which the visible sky is one hemisphere.
the figure of the universe as an imaginary sphere whose center is the Earth
An area or expanse.
Part of the proper of the liturgical celebration of the Eucharist for many Christian denominations, used instead of the alleluia during Lenten or pre-Lenten seasons, in a Requiem Mass, and on a few other penitential occasions.
A series of connected body organs, such as the digestive tract.
A commentator's view or perspective on a subject.
Continued or protracted duration, length, extent
A brief treatise or discourse on a subject.
A small booklet such as a pamphlet, often for promotional or informational uses.