arroba vs liquid measure

arroba and liquid measure both are nouns.

Word	Noun	Adjective	Verb	Adverb
arroba	Yes	No	No	No
liquid measure	Yes	No	No	No

As nouns, liquid measure is a hypernym of arroba; that is, liquid measure is a word with a broader meaning than arroba:

arroba: a liquid measure (with different values) used in some Spanish speaking countries
liquid measure: a unit of capacity for liquids (for measuring the volumes of liquids or their containers)

Other hypernyms of arroba include liquid unit.

arroba (noun)	liquid measure (noun)
a unit of weight used in some Spanish speaking countries	a unit of capacity for liquids (for measuring the volumes of liquids or their containers)
a liquid measure (with different values) used in some Spanish speaking countries