Define Monarchy: Meaning, Origin of the Word and Its Key Features
Define monarchy: the dictionary and reference definitions compared, where the word comes from, the features every monarchy shares, the main kinds, and the words it is often confused with.
Last updated September 2026
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To define monarchy, most dictionaries start with one idea. It is a state ruled or headed by one person. That person, the monarch, usually holds the office for life and often inherits it.
The word also names the country itself, and sometimes the royal family. This page compares the main definitions and traces the word's origin. It lists the features all monarchies share. It also separates monarchy from the terms it is most often confused with.
TL;DR: Monarchy means a system of government with one person as head of state, usually for life and by birth. The word comes from Greek monos, "alone", and arkhein, "to rule". It can mean the system, a country with that system, or the royal family. Monarchies can be absolute or constitutional. They can pass by birth or by election.
How reference works define monarchy
The main dictionaries and encyclopedias agree on the core. They differ in emphasis.
| Source | Definition, (summarised) | Emphasis |
|---|---|---|
| Britannica | A political system based on the undivided sovereignty or rule of a single person | The single ruler |
| Cambridge Dictionary | A system of government in which a country is ruled by a king or queen; also a country with this system | The king or queen |
| Merriam-Webster | Undivided rule or absolute sovereignty by a single person; a nation or state having a monarchical government | Sovereignty |
| Collins | A system in which a country has a monarch; also the monarch and the royal family | The institution and family |
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Britannica adds that the term applies to states where supreme power lies with the monarch. The monarch acts as head of state and gets the post by birth. Britannica also notes that elected monarchies are an exception to that rule.
The three senses of the word
When people define monarchy, they use the word in one of three ways.
- The system. "Britain has kept its monarchy" means the form of government.
- The country. "Norway is a monarchy" means a state with that system.
- The institution or family. "The monarchy is popular" often means the monarch and the royal family.
Knowing which sense is meant avoids a lot of confusion. The monarchy government page looks at the first sense in detail.
Where the word comes from
Origin of "monarchy"
Etymology of "monarchy".
Status: Reviewed.
Note: The word comes from the Greek monarkhia. It is formed from monos, "alone" or "single", and arkhein, "to rule". It passed into Late Latin as monarchia. It reached English through Old French in the 1300s. Related words share the root: monarch, oligarchy ("rule by the few") and anarchy ("without a ruler").
Sources: Merriam-Webster, "monarchy"; Cambridge Dictionary, "monarchy".
Features every monarchy shares
The definitions point to a short list of shared features.
- A single head of state. Even in a co-principality such as Andorra, the office is personal, not a committee.
- Long tenure. The monarch usually holds office for life. Abdication is possible, as in Japan in 2019 and Denmark in 2024.
- A fixed rule of succession. The next monarch is chosen by a set rule, usually birth order, not by an open vote.
- Symbols of office. Crowns, thrones and coronations or enthronements mark the position.
These features hold whether the monarch has real power or none.
Kinds of monarchy
Definitions of monarchy also cover a range of types. There are two main questions. One is how much power the monarch has. The other is how the monarch is chosen.
| Test | Answer | Term |
|---|---|---|
| How much power | Full power in law and practice | Absolute monarchy |
| How much power | Power limited by a constitution | Constitutional or limited monarchy |
| How chosen | By birth | Hereditary monarchy |
| How chosen | By a vote of a defined group | Elective monarchy |
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The types combine. The UK is a constitutional monarchy passed down by birth. Saudi Arabia also passes the crown by birth, but its king is absolute.
Malaysia elects a constitutional king. Vatican City elects an absolute one. The monarchies page gives examples of each.
Words often confused with monarchy
| Term | Meaning | How it differs |
|---|---|---|
| Republic | A state whose head is not a hereditary monarch | The opposite of a monarchy |
| Dictatorship | Rule by one person without legal limits | Not usually hereditary or tied to a royal title |
| Empire | A large state ruling many peoples or territories | Describes size and reach; an empire may be a monarchy or not |
| Kingdom | A state headed by a king or queen | A kind of monarchy, named by the title |
| Dynasty | A family that holds power over generations | Names the family, not the system |
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For how an empire differs from a kingdom, see empire meaning. For the person at the top, see define monarch.
How political thinkers defined monarchy
The modern definitions build on older political theory.
- Aristotle (4th century BCE) sorted governments by who rules and for whom. Rule by one for the common good was monarchy, or kingship. Rule by one for the ruler's own benefit was tyranny, its corrupt form. He set these beside aristocracy and oligarchy (rule by the few) and polity and democracy (rule by the many).
- Thomas Hobbes, in Leviathan (1651), argued that undivided power in one sovereign gave the most stable government.
- Montesquieu, in The Spirit of the Laws (1748), split rule by one person into two kinds. Monarchy, in his sense, meant one person ruling by fixed and established laws. Despotism meant one person ruling by will and whim.
That last distinction still shapes how the word is used. A monarchy implies rules of succession and law around the throne. A dictatorship does not. For a monarch with full power, see absolute rulers. For one bound by law, see limited monarchy.
Edge cases in the definition
A few states test the standard definition.
- A monarch who lives abroad. Canada, Australia and New Zealand are monarchies even though Charles III lives in the UK. Each has its own crown, and a governor-general acts for him.
- A monarch chosen by other voters. One of Andorra's two co-princes is the President of France, elected by French voters, not by Andorrans. Andorra is still classed as a principality.
- A monarch chosen by election. The Pope is elected by cardinals and Malaysia's king by the nine hereditary Malay rulers. Both states are still monarchies, because the office is personal and held for life or a fixed royal term.
These cases show that the heart of the definition is one personal head of state. How that person is chosen matters less.
Monarchy in a sentence
Examples show the three senses at work.
- "Spain restored its monarchy in 1975." (the system)
- "Bhutan is a small Himalayan monarchy." (the country)
- "The monarchy opened the new hospital." (the institution)
To see one monarchy across a thousand years, see our guide to the best books about the royal family. It covers England and Britain from 1066.
Verdict: how to define monarchy
To define monarchy in one line: it is a system in which one person, the monarch, is head of state, usually for life and usually by birth. The word comes from the Greek for "rule by one". It can mean the system, the country or the royal institution. It covers both absolute and constitutional forms. For the wider picture, including how many monarchies remain, see the monarchy hub.
Sources checked for this page
- Britannica, "Monarchy"
- Cambridge Dictionary, "monarchy"
- Merriam-Webster, "monarchy"
- Collins Dictionary, "monarchy"
- Oxford Learner's Dictionaries, "monarchy"
Questions people also ask
What is the simple definition of monarchy?
A system of government in which a country is headed by a king, queen or other single ruler who usually holds the position for life.
Where does the word monarchy come from?
From the Greek monarkhia, built from monos, 'alone', and arkhein, 'to rule'. It reached English through Late Latin and Old French.
Is a monarchy a democracy?
The two can exist together. In a constitutional monarchy such as the UK or Sweden, the monarch is head of state but voters elect the government that holds power.
What is the opposite of a monarchy?
A republic, in which the head of state is not a hereditary monarch and is usually elected or appointed for a fixed term.