Difference between Heir Presumptive and Regal

HEIR PRESUMPTIVE vs REGAL: 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.

A small portable organ, much used in the sixteenth and seventeenth centuries, consisting of one or sometimes two sets of reed-pipes played with keys for the player's right hand, with a small bellows for the left hand.
An old instrument of percussion, composed of sonorous slabs or slips of wood.
A small portable organ, played with one hand, the bellows being worked with the other, -- used in the sixteenth and seventeenth centuries.

Pertaining to a king; kingly; royal: as, a regal title; regal authority; regal pomp.
Synonyms Kingly, etc. See royal.
Royalty; royal authority.

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

Queenly, Queenlike, Mighty, Grand, Princely, Courtly, Splendid, Queen, Stately, Kingly, Purple, Noble, Imperial, Royal, Majestic

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

Queenly, Queenlike, Mighty, Grand, Princely, Courtly, Splendid, Queen, Stately, Kingly, Purple, Noble, Imperial, Royal, Majestic

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.

Regal Entertainment Group salaries: How much does Regal Entertainment Group pay?
Because Regal Entertainment has completed its initial public offering, Starwood Wasserman Fresno LLC has agreed to accept a replacement guaranty from Regal Entertainment.
Her regal mien dropped as she paced, though the King of Knights could not completely cast aside the practised regal bearing.
Regal continued to manufacture and sell resonator instruments under many names, including Regal, Dobro, Old Kraftsman, and Ward.
Hoyts had by that time been acquired by Regal Entertainment Group and Regal Cinemas Inc.
William Regal, but failed to win due to Regal getting himself disqualified.
The Regal App also assists with purchasing tickets, checking show times, monitoring Regal Crown Club movie credits and rewards schedules.
Regal Residency, by Regal Associates, is a marvellous housing project located in Chikhali, Pune.
In order to sign up for Regal Unlimited, moviegoers must use the Regal app.
Regal, yes Regal is the word I most closely associated with Vienna.