Meaning: A star in the constellation Perseus, known for its variability in brightness.

Part of speech: noun

Example: Algol is often referred to as the 'Demon Star' due to its fluctuating brightness.

Category: Science › Astronomy

Synonyms:

• Beta Persei
• Demon Star

Meaning: A title of respect for a woman in some Arabic-speaking cultures.

Part of speech: noun

Example: Alhaja Fatima was known for her wisdom and kindness.

Category: Culture › Social Titles

Meaning: A title of respect for a man who has completed the Hajj pilgrimage.

Part of speech: noun

Example: Alhaji Musa was celebrated in his community for his piety.

Category: Culture › Social Titles

Meaning: A term used in legal contexts to refer to 'otherwise known as'.

Part of speech: noun

Example: The defendant, alia John Smith, was found guilty.

Category: Law › Legal Terms

Synonyms:

• alias
• also known as

Meaning: Capable of being transferred to another owner.

Part of speech: adjective

Example: The property is alienable and can be sold.

Category: Law › Property Law

Synonyms:

• transferable
• assignable

Meaning: The whole passage along which food passes through the body from mouth to anus.

Part of speech: noun

Example: The alimentary canal includes the stomach and intestines.

Category: Medicine › Anatomy

Synonyms:

• digestive tract
• gastrointestinal tract

Meaning: A portion of a larger whole, especially in a mathematical context.

Part of speech: noun

Example: An aliquot of the solution was taken for testing.

Category: Mathematics › Arithmetic

Synonyms:

• portion
• fraction

Meaning: The quality of being alkaline; the degree of basicity of a solution.

Part of speech: noun

Example: The alkalinity of the water is tested regularly.

Category: Science › Chemistry

Synonyms:

• basicity
• alkaline nature

Meaning: A class of naturally occurring organic compounds that mostly contain basic nitrogen atoms.

Part of speech: noun

Example: Morphine is an alkaloid derived from the opium poppy.

Category: Science › Chemistry

Synonyms:

• nitrogenous base
• organic compound

Meaning: A saturated hydrocarbon with single bonds between carbon atoms.

Part of speech: noun

Example: Methane is the simplest alkane.

Category: Science › Chemistry

Synonyms:

• paraffin
• saturated hydrocarbon

Meaning: A hydrocarbon that contains at least one carbon-carbon double bond.

Part of speech: noun

Example: Ethylene is the simplest alkene.

Category: Science › Chemistry

Synonyms:

• olefin
• unsaturated hydrocarbon

Meaning: Taking up all of one's time, energy, or attention.

Part of speech: adjective

Example: Her all-consuming passion for art drove her to create every day.

Category: Psychology › Emotions

Synonyms:

• overwhelming
• all-encompassing

Meaning: Relating to or containing allegory; symbolic.

Part of speech: adjective

Example: The allegorical tale teaches a moral lesson.

Category: Literature › Narrative Techniques

Synonyms:

• symbolic
• figurative

Meaning: A story, poem, or picture that can be interpreted to reveal a hidden meaning, typically moral or political.

Part of speech: noun

Example: Animal Farm is a famous allegory about the Russian Revolution.

Category: Literature › Narrative Techniques

Synonyms:

• symbolism
• fable

Meaning: A musical term indicating a fast tempo.

Part of speech: noun

Example: The piece begins with an allegro that sets an energetic mood.

Category: Music › Tempo

Synonyms:

• fast
• lively

Meaning: A variant form of a morpheme.

Part of speech: noun

Example: The plural 's' in 'cats' is an allomorph of the morpheme for plurality.

Category: Science › Linguistics

Meaning: A variant pronunciation of a phoneme.

Part of speech: noun

Example: The 'p' in 'spin' and 'pin' are allophones.

Category: Science › Linguistics

Meaning: A large carnivorous dinosaur from the late Jurassic period.

Part of speech: noun

Example: The allosaurus was a formidable predator.

Category: Nature › Dinosaurs

Meaning: Different forms of the same element in the same physical state.

Part of speech: noun

Example: Graphite and diamond are allotropes of carbon.

Category: Science › Chemistry

Meaning: Present everywhere; pervasive.

Part of speech: adjective

Example: The all-pervading influence of technology affects our lives.

Category: Philosophy

Synonyms:

• ubiquitous
• omnipresent

Meaning: Having unlimited power or authority.

Part of speech: adjective

Example: The all-powerful ruler made decisions without consulting anyone.

Category: Politics

Synonyms: omnipotent

Meaning: Characterized by indirect references.

Part of speech: adjective

Example: The allusive style of writing requires careful reading.

Category: Arts › Literature

Synonyms: suggestive

Meaning: Relating to soil or sediment deposited by running water.

Part of speech: adjective

Example: Alluvial plains are fertile and good for farming.

Category: Nature › Geology

Synonyms: riverine

Meaning: Soil or sediment deposited by flowing water.

Part of speech: noun

Example: The river left behind rich alluvium after the flood.

Category: Nature › Geology

Synonyms: sediment

Meaning: A type of subatomic particle consisting of two protons and two neutrons.

Part of speech: noun

Example: Alpha particles are emitted during radioactive decay.

Category: Science › Physics

Meaning: Radiation consisting of alpha particles.

Part of speech: noun

Example: Alpha radiation is less penetrating than beta radiation.

Category: Science › Physics

Meaning: A second self or different version of oneself.

Part of speech: noun

Example: His alter ego is a superhero in his stories.

Category: Psychology

Synonyms: second self

Meaning: An electric current that reverses direction periodically.

Part of speech: noun

Example: Alternating current is commonly used in homes.

Category: Technology › Electrical Engineering

Synonyms: AC

Meaning: The selfless concern for the well-being of others.

Part of speech: noun

Example: Her altruism was evident in her volunteer work.

Category: Philosophy

Synonyms:

• selflessness
• charity

Meaning: Showing a selfless concern for others.

Part of speech: adjective

Example: His altruistic actions inspired many.

Category: Philosophy

Synonyms:

• selfless
• charitable

Meaning: A type of aluminum compound.

Part of speech: noun

Example: The chemist studied the properties of alu.

Category: Science › Chemistry

Meaning: A chemical compound of aluminum and oxygen.

Part of speech: noun

Example: Alumina is used in the production of aluminum.

Category: Science › Chemistry

Meaning: Relating to the alveoli, small air sacs in the lungs.

Part of speech: adjective

Example: Alveolar gas exchange is crucial for respiration.

Category: Medicine › Anatomy

Meaning: A small air sac in the lungs where gas exchange occurs.

Part of speech: noun

Example: Oxygen enters the blood through the alveolus.

Category: Medicine › Anatomy

Synonyms: air sac

Meaning: A progressive brain disorder that affects memory and thinking.

Part of speech: noun

Example: Alzheimer's disease can lead to severe cognitive decline.

Category: Medicine › Neurology

Synonyms: Alzheimer's

Meaning: The process of combining or uniting.

Part of speech: noun

Example: The amalgamation of the two firms created a larger company.

Category: Business › Mergers

Synonyms:

• merger
• combination

Meaning: A person who writes down what another person says.

Part of speech: noun

Example: The author had an amanuensis to help with his notes.

Category: Arts

Synonyms:

• secretary
• scribe

Meaning: Relating to love or sexual desire.

Part of speech: adjective

Example: The poem had an amatory theme.

Category: Arts › Literature

Synonyms:

• romantic
• loving

Antonyms:

• unloving
• cold

Meaning: An ambassador with a broad mandate to represent their country.

Part of speech: noun

Example: The ambassador-at-large traveled to various countries.

Category: Politics › Diplomacy

Synonyms:

• special envoy
• diplomatic representative

Meaning: A female ambassador.

Part of speech: noun

Example: The ambassadress hosted a gala for international guests.

Category: Politics › Diplomacy

Synonyms:

• female diplomat
• envoy