noun
Used both for an economy as a social or national system and, in context, for the academic subject of economics.
日本経済は少しずつ回復している。
The Japanese economy is gradually recovering.
大学で経済を学
I study economics at university.
noun
finances; financial circumstances
Refers to a person, family, organization, or household's financial situation; often overlaps in practice with 家計 for household finances.
我が家の経済は今あまり楽ではない。
Our family's finances are not very comfortable right now.
彼は家庭の経済を支えている。
He supports the household financially.
noun
A more formal or limited noun use meaning economical use or saving of resources; 節約 is usually the plainer everyday word for deliberate thrift.
両面印刷にすれば紙の経済になる。
Printing on both sides saves paper.