also: イデコ
noun
individual-type defined contribution pension plan; iDeCo
A Japanese tax-advantaged retirement savings account where individuals manage their own contributions and investments. Often referred to by the abbreviation iDeCo.
個人型確定拠出年金（iDeCo）に加入すると、掛金が全額所得控除になります。
If you join an individual-type defined contribution pension plan (iDeCo), your contributions are fully tax-deductible.
iDeCoの運用商品は自分で選べます。
You can choose the investment products for your iDeCo yourself.
The broader category of defined contribution pension plans, which includes both corporate and individual types. 個人型確定拠出年金 specifically refers to the individual type.
The corporate-type defined contribution pension plan, where employers make contributions on behalf of employees. Contrasts with the individual type where the individual contributes directly.
A compound of 個人型 (individual type), 確定 (fixed/defined), 拠出 (contribution), and 年金 (pension). The term was coined as part of Japan's pension reform to describe the individual-managed defined contribution plan.