Difference between Heir Presumptive and Usurp

HEIR PRESUMPTIVE vs USURP: NOUN

A person who expects to inherit but whose right can be defeated by the birth of a nearer relative
Someone who will inherit only if no better choice for an heir is born.
See heir apparent.
An heir who stands to inherit the estate, title, or office of an intestate ancestor, but whose claim can be defeated if a relative who is closer to the ancestor is born prior to the ancestor's death.

To seize power from another, usually by illegitimate means.
To use and assume the coat of arms of another person.
To make use of.
Seize and take control without authority and possibly with force; take as one's right or possession
Take the place of

To seize and hold (the power or rights of another, for example) by force or without legal authority.
To take over or occupy without right.
To take the place of (another) without legal authority; supplant.
To commit forcible seizure of place, power, functions, or the like, without right; to commit unjust encroachments; to be, or act as, a usurper.
To seize another's place, authority, or possession wrongfully.

Take as one's right or possession
To seize and hold possession of, as of some important or dignified place, office, power, or property, by force or without right; seize, appropriate, or assume illegally or wrongfully: as, to usurp a throne; to usurp the prerogatives of the crown; to usurp power.
To assume, in a wider sense; put on; sometimes, to counterfeit.
To be or act as a usurper; hence, to commit illegal seizure; encroach: with on or upon.

Succession, Peacock throne, Kingship, Dynastic, King, Prince consort, Princeling, Monarch, Figurehead, Prince regent, Coronation, Heir, Successor, Throne, Heir apparent

Evict, Replace, Infringe, Expropriate, Impinge, Rob, Steal, Hijack, Grab, Seize, Encroach, Deprive, Take over, Assume, Arrogate

Succession, Peacock throne, Kingship, Dynastic, King, Prince consort, Princeling, Monarch, Figurehead, Prince regent, Coronation, Heir, Successor, Throne, Heir apparent

Supplant, Subvert, Monopolize, Extract, Prevaricate, Evict, Replace, Infringe, Impinge, Steal, Grab, Seize, Deprive, Take over, Arrogate

He is the son of Eliwood, the main character of Fire Emblem: The Blazing Blade, and heir presumptive of Pherae.
Frenchman, that he is not heir presumptive to another crown, and that he has previously taken the civic oath.
Prince Albert became King George VI and the young Princess Elizabeth became heir presumptive to the throne.
Known as "The Brat" in the Heraldic Circle, the Heir-presumptive lives up to her nickname.
Roger was made lieutenant of Ireland and was declared heir presumptive to the Crown.

Handatory government regulations would usurp the role of voluntary free market decisions.
And look usurp to the fait accompli that teachable akejx.
The people were not permitted to usurp this position.
Biden could use presidential power to usurp the Constitution.
They may usurp the first three at some point.
The point is it would usurp NHTSA's authority.".
Adonijah, however, sought to usurp the throne from Solomon.
Therefore, federal politicians probably would not usurp these powers.
Lorgar revealed his plan to usurp the Warmaster.
Assume, usurp, claim unduly, make unjust pretensions to.