The leading woman in a specified field of endeavor. / Alternative spelling of First Lady

The wife of the chief executive of a nation; especially the wife of the President of a country; or a woman (e.g. a relative) who takes on similar public duties, as when the chief executive is unmarried.

A member of an emergency service who is first on the scene, or among those first on the scene, at an emergency. / A member of an emergency service trained to provide emergency medical care.

Happening for the first time; doing something for the first time.

Alternative spelling of firststringer

Of or relating to an immigrant or his family / Of or relating to the initial version of a class of products

(UK, military, nautical, historical) Of a Royal Navy ship of the line in the Napoleonic Era: having at least 100 guns across three gun decks, a complement of 850–875, and weighing approximately 2,500 tons burthen.

(UK, military, nautical, historical) A first-rate ship of the line.

(Canada, US) The floor of a building at the level of the street or surrounding ground; the ground floor / (Britain) The floor of a building one above the ground floor

(idiomatic) Upon first impression or consideration; seemingly, apparently, ostensibly.