100 Common English Words with Greek Roots

No.	Item	Definition
1.	academy	Institution for education or specialized training.
2.	allergy	Immune reaction to a usually harmless substance.
3.	alphabet	Set of letters used in a language.
4.	analysis	Detailed examination of something’s parts.
5.	antibiotic	Medicine that treats bacterial infections.
6.	asthma	Condition causing narrowed airways and breathing difficulties.
7.	astronomy	Study of stars, planets, and space.
8.	athlete	Person trained in sports or physical competition.
9.	atmosphere	Layer of gases surrounding a planet.
10.	atom	Smallest unit retaining an element’s chemical identity.
11.	biology	Study of living things.
12.	chaos	State of complete disorder or confusion.
13.	chorus	Repeated song section or group of singers.
14.	church	Christian place of worship or religious organization.
15.	cinema	Movies or a place showing them.
16.	clinic	Place providing medical advice or treatment.
17.	comedy	Entertainment intended to make people laugh.
18.	crisis	Time of serious difficulty or danger.
19.	crocodile	Large aquatic reptile with powerful jaws.
20.	democracy	Government in which people choose their leaders.
21.	diabetes	Condition involving persistently high blood sugar.
22.	diagnosis	Identification of an illness or problem.
23.	diagram	Drawing explaining structure, relationships, or processes.
24.	dialogue	Conversation between two or more people.
25.	diet	Food and drink regularly consumed.
26.	dinosaur	Member of a reptile group including birds.
27.	dolphin	Intelligent aquatic mammal related to whales.
28.	drama	Story performed by actors.
29.	echo	Sound heard again after reflecting from surfaces.
30.	eclipse	Event when one celestial body obscures another.
31.	ecology	Study of organisms and their environments.
32.	economics	Study of production, consumption, and resource distribution.
33.	elephant	Large mammal with a trunk and tusks.
34.	empathy	Ability to understand another person’s feelings.
35.	emphasis	Special importance or attention given to something.
36.	energy	Capacity to do work or cause change.
37.	enthusiasm	Strong excitement or interest.
38.	epidemic	Widespread disease outbreak within a population.
39.	galaxy	Vast collection of stars, gas, and dust.
40.	geography	Study of Earth’s places and features.
41.	geology	Study of Earth’s rocks, structure, and history.
42.	geometry	Study of shapes, sizes, and space.
43.	grammar	Rules governing how a language works.
44.	harmony	Pleasing combination of musical notes.
45.	history	Study or record of past events.
46.	hormone	Chemical messenger controlling processes in the body.
47.	hygiene	Practices that maintain cleanliness and prevent disease.
48.	icon	Representative symbol, image, or widely admired person.
49.	idea	Thought, suggestion, or mental image.
50.	irony	Contrast between expectations and reality.
51.	logic	Principles of sound reasoning.
52.	machine	Device that performs work using power.
53.	marathon	Running race covering about twenty-six miles.
54.	mathematics	Study of numbers, shapes, and patterns.
55.	melody	Sequence of notes forming a recognizable tune.
56.	metaphor	Description comparing things without using like.
57.	method	Particular way of doing something.
58.	microphone	Device that captures sound as electrical signals.
59.	microscope	Instrument for viewing extremely small objects.
60.	music	Sounds arranged to create rhythm and melody.
61.	myth	Traditional story explaining beliefs or natural events.
62.	ocean	Vast body of salt water.
63.	octopus	Soft-bodied sea animal with eight arms.
64.	orchestra	Large group of musicians playing instruments together.
65.	organ	Body part performing a particular function.
66.	oxygen	Gas essential for human breathing.
67.	pandemic	Disease outbreak spreading across countries or continents.
68.	paragraph	Section of writing developing one main idea.
69.	pharmacy	Place where medicines are prepared or sold.
70.	philosophy	Study of knowledge, reality, and existence.
71.	photograph	Image captured using a camera.
72.	phrase	Group of words expressing an idea.
73.	physics	Study of matter, energy, and forces.
74.	poetry	Writing using concentrated language, imagery, and rhythm.
75.	problem	Difficulty that needs a solution.
76.	program	Planned activities or instructions for a computer.
77.	psychology	Study of the mind and behavior.
78.	rhythm	Regular pattern of beats or movements.
79.	sarcasm	Mocking language often expressing the opposite meaning.
80.	school	Place where people receive education.
81.	skeleton	Framework of bones supporting a body.
82.	stadium	Large sports venue surrounded by spectator seating.
83.	strategy	Plan for achieving a goal.
84.	syllable	Word unit containing one main vowel sound.
85.	symbol	Mark or object representing something else.
86.	sympathy	Concern or sorrow for another person’s suffering.
87.	symptom	Sign of an illness or condition.
88.	system	Connected parts working together.
89.	technology	Practical application of scientific knowledge.
90.	telephone	Device for speaking to someone far away.
91.	telescope	Instrument for viewing distant objects.
92.	television	System for broadcasting moving images and sound.
93.	theater	Place where plays and performances are presented.
94.	theory	Explanation supported by reasoning or evidence.
95.	therapy	Treatment for physical or mental conditions.
96.	tragedy	Event or story involving great suffering.
97.	trauma	Serious physical injury or emotional distress.
98.	trophy	Prize awarded for winning a competition.
99.	zone	An area with particular features or purposes.
100.	zoo	Place where animals are kept for viewing.