noun
Japanese government bond; JGB
Financial term for bonds issued by the Japanese government. Often abbreviated as JGB in English contexts.
日本国債の利回りが上昇した。
The yield on Japanese government bonds rose.
投資家は安全資産として日本国債を購入する。
Investors buy Japanese government bonds as a safe asset.
国債 is the general term for government bonds, while 日本国債 specifically refers to bonds issued by the Japanese government.
Compound of 日本 (Japan) and 国債 (government bond).