A small or narrow opening, gap, slit, or hole.
The diameter of such a hole which restricts the width of the lightpath through the whole system. For a telescope, this is the diameter of the objective lens.
A hole which restricts the diameter of the lightpath through one plane in an optical system.
The (typically) large-diameter antenna used for receiving and transmitting radio frequency energy containing the data used in communication satellites, especially in the geostationary belt. For a comsat, this is typically a large reflective dish antenna; sometimes called an array.
The maximum angle between the two generatrices.
An underground cavity, formed by water or falling rocks, which is much longer than it is wide.
An incident or episode.
A gambling game for two players using three dice, in which the object is to throw a double over ten.
A movement in classical dressage, in which the horse performs a very collected, energetic, and elevated trot that has a longer period of suspension between each foot fall than a working trot.
A fee paid for passing or for being conveyed between places.
The act of passing; movement across or through.
Part of a path or journey.
A paragraph or section of text or music with particular meaning.
A passageway or corridor.
The right to pass from one place to another.
Serial passage.
A strait or other narrow waterway.
The official approval of a bill or act by a parliament.
The advance of time.
The vagina.
The use of tight brushwork to link objects in separate spatial plains. Commonly seen in Cubist works.
To execute a passage movement.
To pass something, such as a pathogen or stem cell, through a host or medium.
To make a passage, especially by sea; to cross.
Of a bird: Less than a year old but living on its own, having left the nest.