What's the Difference Between a Knight and Lord

Lord is an inherited title

Is a knighthood higher than a lord?

Sir is used to address a man who has the rank of baronet or knight; the higher nobles are referred to as Lord. … It can also be used of the wife of a lower-ranking noble, such as a baron, baronet, or knight.

What is higher than the lord?

The highest grade is duke/duchess, followed by marquess/marchioness, earl/countess, viscount/viscountess and baron/baroness. Dukes and duchesses are addressed with their actual title, but all other ranks of the peerage have the appellation Lord or Lady. Non hereditary life peers are also addressed as Lord or Lady.