agate line vs square measure

agate line and square measure both are nouns.

Word	Noun	Adjective	Verb	Adverb
agate line	Yes	No	No	No
square measure	Yes	No	No	No

As nouns, square measure is a hypernym of agate line; that is, square measure is a word with a broader meaning than agate line:

agate line: space for one line of print (one column wide and 1/14 inch deep) used to measure advertising
square measure: a system of units used to measure areas

Other hypernyms of agate line include area unit.

agate line (noun)	square measure (noun)
space for one line of print (one column wide and 1/14 inch deep) used to measure advertising	a system of units used to measure areas