Lord (noun)

1. A person who has authority, control, or power over others.
2. A person who is master of a household, estate, or other property.
3. A feudal superior; especially: a feudal noble of high rank.
4. An owner of land.

Origin:

Middle english, from old english hlāford, from hlāf loaf + weard ward.

Examples:

1. The lord of the manor was a wealthy man.
2. The new lord of the castle was crowned today.
3. He became the lord of the land after his father's death.
4. She was considered the lady and her husband the lord of the house.