mark vs broad arrow

mark and broad arrow both are nouns.

Word	Noun	Adjective	Verb	Adverb
mark	Yes	No	Yes	No
broad arrow	Yes	No	No	No

As nouns, broad arrow is a hyponym of mark; that is, broad arrow is a word with a more specific, narrower meaning than mark:

mark: a written or printed symbol (as for punctuation)
broad arrow: a mark shaped like an arrowhead; used to mark convicts' clothing

As nouns, broad arrow is a hyponym of mark; that is, broad arrow is a word with a more specific, narrower meaning than mark:

mark (noun)	broad arrow (noun)
something that exactly succeeds in achieving its goal	an arrow with a wide barbed head
an indication of damage	a mark shaped like an arrowhead; used to mark convicts' clothing
a marking that consists of lines that cross each other	an arrowhead mark identifying British government property
the impression created by doing something unusual or extraordinary that people notice and remember
a number or letter indicating quality (especially of a student's performance)
a written or printed symbol (as for punctuation)
a symbol of disgrace or infamy
a distinguishing symbol
a visible indication made on a surface
a reference point to shoot at
a perceptible indication of something not immediately apparent (as a visible clue that something has happened)
a person who is gullible and easy to take advantage of
formerly the basic unit of money in Germany

mark (verb)	broad arrow (verb)
make or leave a mark on
insert punctuation marks into
assign a grade or rank to, according to one's evaluation
celebrate by some ceremony or observation
put a check mark on or near or next to
be a distinctive feature, attribute, or trait; sometimes in a very positive sense
make underscoring marks
remove from a list
designate as if by a mark
establish as the highest level or best performance
make small marks into the surface of
mark with a scar
attach a tag or label to
notice or perceive
to accuse or condemn or openly or formally or brand as disgraceful