It is sometimes desirable to express the idea of a phrase or a group of words by using a single word:
A child born after the death of its father – Posthumous
A child born of parents who were not married – Illegitimate
A child whose parents are dead – Orphan
A gathering of worshippers – Congregation
A hundred years – Century
A man who remains unmarried – Bachelor
A man whose wife is dead – Widower
A person indifferent to both pleasure and pain – Stoic
A person trained for competing in physical exercises and outdoor games – Athlete
A person who always looks at the bright side of things – Optimist
A person who always looks at the dark side of things – Pessimist
A person who brings in goods from a foreign country – Importer
A person who can use both hands with equal ease – Ambidextrous
A person who comes as a settler into another country – Immigrant
A person who does no work and lives on others – Drone
A person who gets goods secretly and illegally into or out of a country – Smuggler
A person who goes away from one’s own country to another to settle there – Emigrant
A person who helps others, especially those who are poor or in trouble – Philanthropist
A person who is a great lover of his country – Patriot
A person who is sent to preach his religion, especially among people who are ignorant of it – Missionary
A person who loves wealth for its own sake and is not inclined to spend it -Miser
A person who represents his country’s economic, political and other interests in another country – Ambassador
A person who sends goods to another country – Exporter
A person who smuggles alcoholic liquor or sells it illegally – Bootlegger
A person who spends extravagantly – Spendthrift
A person who visits other countries for pleasure – Tourist
A person who writes the life of another person – Biographer
A place where bees are kept – Apiary
A place where birds are kept – Aviary
A plant or animal that draws sustenance from another – Parasite
A traveller through outer space – Astronaut
A woman who remains unmarried – Spinster
A woman whose husband is dead – Widow
Aircraft with two pairs of wings, one above the other – Biplane
Allowing light to pass through, so that objects behind can be distinctly seen – Transparent
An artificial pond or tank for keeping and showing living fish – Aquarium
An operation performed on a dead body to find the cause of death – Postmortem
Custom of having more than one husband at the same time – Polyandry
Custom of having more than one wife at the same time – Polygamy
Difficult or impossible to read – Illegible
Fit to be eaten – Edible
Going back from the reach of memory – Immemorial
Government by nobles – Autocracy
Government by officials – Bureaucracy
Government carried on by the people or its elected representatives – Republic
Government of the people, for the people and by the people – Democracy
Grounds of a school, or university, where the main buildings are located – Campus
Group of military operations with a set purpose, usually in one area – Campaign
Having two wives or husbands living – Bigamy
Helping neither side in war or quarrel – Neutral
Incapable of making mistakes or doing wrong – Infallible
Life history of a person written by another – Biography
Life story of a person written by himself – Autobiography
List of the days, weeks, months, of a particular year – Calendar
Not favouring one more than another – Impartial
Not yet fully developed – Immature
Official in charge of a museum – Curator
One who abstains from alcoholic drinks – Teetotaler
One who believes implicitly in fate – Fatalist
One who collects postage-stamps – Philatelist
One who does not believe in the existence of God – Atheist
One who goes on a journey to a holy place – Pilgrim
One who is all-powerful – Omnipotent
One who is present everywhere – Omnipresent
One who is unable to pay one’s debts – Insolvent; bankrupt
One who knows everything – Omniscient
One who plays a game for pleasure and not professionally – Amateur
One who studies the science of the sun, moon, stars, and planets – Astronomer
Onewho cannot be elected or selected under the rules – Ineligible
Person with no belief in religion (especially in what it is considered to be the true religion) – Infidel
Practice of being married to only one person at a time – Monogamy
Science of life and living things- Biology
Soldiers who fight on horseback – Cavalry
Sudden happening which makes quick action necessary – Emergency
That can be spread by means of germs carried in the atmosphere or in water – Infectious
That can be spread by touch – Contagious
That cannot be seen through – Opaque
That may be easily set on fire – Inflammable
That which can he easily be understood – Intelligible
That which cannot be approached – Inaccessible
That which cannot be believed – Incredible
That which cannot be blotted out or effaced – Indelible
That which cannot be conquered – Invincible
That which cannot be destroyed – Indestructible
That which cannot be divided – Indivisible
That which cannot be done without – Indispensable
That which cannot be explained – Inexplicable
That which cannot be heard – Inaudible
That which cannot be perceived by the senses – Imperceptible
That which cannot be recalled or altered – Irrevocable
That which cannot be seen – Invisible
That which cannot be solved – Insolvable
That which is sure to happen – Inevitable
That which makes it difficult to recognize the presence or real nature of something – Camouflage
The act of killing oneself – Suicide
The dead body of a human being – Corpse
The dead body of an animal – Carcass
The want of government in a country – Anarchy
Unable to read or write – Illiterate
Yearly return of the date of an event – Anniversary