The ounce of Spain and Spanish America, the sixteenth part of the libra, or a little more than the avoirdupois ounce.(noun)
A Mexican gold coin, equal to 8 scudos or 16 pesos.(noun)
The Century Dictionary (Public Domain)
Use "onza" in a sentence
"O salve reina Maria Lionza Or save queen Maria Lionza por Venezuela va con su onza y cuidando está Venezuela takes her to Oz and is caring y va velando a su tierra entera desde el Guajiro hasta Cumaná and will ensure your whole earth from the Guajiro to Cumaná"
"Estos pesticidas an son venenosos porque una cantidad pequea como de una onza a una pinta puede matar a un adulto."
"With a low cry of surprise, Juan gazed at the glittering coins; then, with feverish fingers, he took up a handful and examined them carefully, for he had never seen the Spanish onza, and did not know its value."