Originally: a woman of superior rank or standing in society; a woman whose rank or office is indicated by the title ‘Lady’. In later use more…

transferred. Lady (as feminine of lord). Obsolete.

The wife or daughter of a lord; a woman of rank, a lady. Now historical or poetic.

Chiefly in form Doña. A (Spanish or Portuguese) lady. Also prefixed to the name as a title of courtesy.

A lady; a title of honour or courtesy for an Italian or (instead of doña or dona) a Spanish or Portuguese lady.

A lady of high rank, distinguished social or professional standing, or of dignified or imposing bearing.

A woman who is addressed as ‘Your Ladyship’; esp. a female member of the nobility (cf. lady, n. 3a).

A title of respect prefixed to the name of a Spanish lady, or used without the name in addressing her; hence, a lady of Spanish nationality.

A woman, esp. one of high social rank; a lady; = lady, n. 5a.

figurative and in extended use. A person who has the highest standing or who takes a leading role in a particular community or field. Also: a…

A term of respect applied to Portuguese ladies; hence (with a, the, etc.) a Portuguese lady.

A woman who exercises feudal authority; also, the wife of a seigneur.