traverse vs crosspiece

traverse and crosspiece both are nouns.

Word	Noun	Adjective	Verb	Adverb
traverse	Yes	No	Yes	No
crosspiece	Yes	No	No	No

As nouns, crosspiece is a hypernym of traverse; that is, crosspiece is a word with a broader meaning than traverse:

traverse: a horizontal crosspiece across a window or separating a door from a window over it
crosspiece: a transverse brace

As nouns, traverse and crosspiece are synonyms defined as:

traverse and crosspiece: a horizontal beam that extends across something

Other synonyms of traverse include crossbeam, trave.

traverse (noun)	crosspiece (noun)
taking a zigzag path on skis	a transverse brace
travel across	a horizontal beam that extends across something
a horizontal crosspiece across a window or separating a door from a window over it
a horizontal beam that extends across something

traverse (verb)	crosspiece (verb)
deny formally (an allegation of fact by the opposing party) in a legal suit
travel across or pass over
to cover or extend over an area or time period