noun
Refers to the wife of a head of state, especially the U.S. president, or a prominent woman in a similar public role.
アメリカのファーストレディーは、さまざまな社会活動に取り組んでいる。
The first lady of the United States is involved in various social activities.
Variant with an interpunct; less common but still seen.
Borrowed from English 'first lady'.