span vs trestle

span and trestle both are nouns.

Word	Noun	Adjective	Verb	Adverb
span	Yes	No	Yes	No
trestle	Yes	No	No	No

span (noun)	trestle (noun)
the act of sitting or standing astride	sawhorses used in pairs to support a horizontal tabletop
a structure that allows people or vehicles to cross an obstacle such as a river or canal or railway etc.	a supporting tower used to support a bridge
the distance or interval between two points
a unit of length based on the width of the expanded human hand (usually taken as 9 inches)
two items of the same kind
the complete duration of something

span (verb)	trestle (verb)
to cover or extend over an area or time period