This is the 6228th most frequent Japanese word.
クオーター
"クオーター" means "a person who is one-quarter of a certain ethnicity or nationality."
In this context, クオーター refers to a person whose one-fourth of their heritage comes from a specific ethnicity.
彼はアメリカ人の祖父を持つクオーターです。
He is a quarter American with an American grandfather.
Here, クオーター means a unit of measurement, specifically a quarter of a cup.
このクオーターのカップで砂糖を量ってください。
Please measure sugar using this quarter cup.
In this instance, クオーター signifies a unit of time division, referring to a quarter of a year.