transit vs alidad

transit and alidad both are nouns.

Word	Noun	Adjective	Verb	Adverb
transit	Yes	No	Yes	No
alidad	Yes	No	No	No

transit (noun)	alidad (noun)
a journey usually by ship	surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles
a surveying instrument for measuring horizontal and vertical angles, consisting of a small telescope mounted on a tripod	surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments
a facility consisting of the means and equipment necessary for the movement of passengers or goods

transit (verb)	alidad (verb)
make a passage or journey from one place to another
cause or enable to pass through
revolve (the telescope of a surveying transit) about its horizontal transverse axis in order to reverse its direction
pass across (a sign or house of the zodiac) or pass across (the disk of a celestial body or the meridian of a place)