This is the 7179th most frequent Japanese word.
一戸
"一戸" means "one house" or "one household" in English.
Here, 一戸建て refers to 'detached house', specifying a type of residential building.
その通りには、一戸建てが並んでいます。
On that street, there are many detached houses lined up.
In this context, 一戸 is used to count a single house or property.
私の友人は一戸の家を購入しました。
My friend purchased one house.
Here, 一戸 is used metaphorically to denote 'one household or residence' indicating sparsity.