List of Use Greek and Latin roots as clues to the meanings of words

1. Bicycle (bi- two, cycle- circle) – A vehicle with two wheels.
2. Photograph (photo- light, graph- write) – A picture made using light.
3. Telephone (tele- far, phone- sound) – A device for talking to someone far away.
4. Autograph (auto- self, graph- write) – A person’s own signature.
5. Microscope (micro- small, scope- view) – An instrument used to view small objects.
6. Television (tele- far, vis- see) – A device for viewing distant images and sounds.
7. Graphite (graph- write) – A form of carbon used in pencils.
8. Geometry (geo- earth, metry- measure) – The branch of mathematics involving shapes and sizes.
9. Pseudonym (pseudo- false, onym- name) – A false name used by an author.
10. Aquarium (aqua- water) – A place where aquatic plants and animals are kept.
11. Hydrate (hydro- water) – A compound that contains water.
12. Biography (bio- life, graph- write) – A written account of someone’s life.
13. Thermometer (thermo- heat, meter- measure) – An instrument for measuring temperature.
14. Dentist (dent- tooth) – A doctor who takes care of teeth.
15. Transport (trans- across, port- carry) – To carry something from one place to another.
16. Astronaut (astro- star, naut- sailor) – A person who travels in space.
17. Invisible (in- not, vis- see) – Not able to be seen.
18. Submarine (sub- under, marine- sea) – A vessel that operates underwater.
19. Geometry (geo- earth, metry- measure) – The mathematics of shapes and sizes.
20. Hydrology (hydro- water, logy- study) – The study of water.
21. Thermal (therm- heat) – Related to heat.
22. Chronology (chrono- time, logy- study) – The study of time and order of events.
23. Microwave (micro- small, wave) – An electromagnetic wave with a short wavelength.
24. Pedestrian (ped- foot) – A person walking on foot.
25. Antibiotic (anti- against, bio- life) – A medicine that fights bacterial infections.
26. Paleontology (paleo- ancient, ontology- study) – The study of fossils and prehistoric life.
27. Geology (geo- earth, logy- study) – The study of the Earth’s structure and substances.
28. Metaphor (meta- beyond, phor- carry) – A figure of speech comparing two unlike things.
29. Pluto (Pluto- god of the underworld) – The name of a dwarf planet and ancient Roman god.
30. Telegraph (tele- far, graph- write) – A system for sending messages over long distances.
31. Symphony (sym- together, phony- sound) – A long piece of music played by an orchestra.
32. Thermostat (thermo- heat, stat- stand) – A device that controls temperature.
33. Astronomy (astro- star, nomy- law) – The study of celestial objects and space.
34. Automatic (auto- self, mat- make) – Operating by itself without human intervention.
35. Democracy (demo- people, cracy- rule) – A system of government by the people.
36. Energy (en- in, erg- work) – The capacity to do work.
37. Homophone (homo- same, phone- sound) – Words that sound the same but have different meanings.
38. Neon (neon- new) – A colorless, odorless gas used in neon signs.
39. Polygon (poly- many, gon- angle) – A shape with many angles and sides.
40. Psychology (psycho- mind, logy- study) – The study of the mind and behavior.
41. Epicenter (epi- upon, center- middle) – The point on the Earth’s surface directly above an earthquake.
42. Benevolent (bene- good, volent- wish) – Showing kindness and goodwill.
43. Fortify (fort- strong) – To strengthen or secure.
44. Dehydrate (de- remove, hydrate- water) – To remove water from something.
45. Helicopter (helix- spiral, pter- wing) – A vehicle that flies using rotating blades.
46. Hypothesis (hypo- under, thesis- placing) – A proposed explanation made on limited evidence.
47. Hydroplane (hydro- water, plane- glide) – A boat that skims over the surface of water.
48. Aqueduct (aqua- water, duct- lead) – A channel used to carry water.
49. Unicorn (uni- one, corn- horn) – A mythical creature with a single horn.
50. Monologue (mono- one, log- speech) – A long speech by one person.
51. Omnivore (omni- all, vore- eater) – An animal that eats both plants and animals.
52. Reptile (rept- creep) – A cold-blooded vertebrate animal.
53. Telescope (tele- far, scope- view) – An instrument used to view distant objects.
54. Vocal (voc- voice) – Related to the voice or speaking.
55. Centipede (centi- hundred, pede- foot) – An insect with many legs.
56. Dentition (dent- tooth, tion- action) – The arrangement of teeth.
57. Ecosystem (eco- house, system- set) – A system of interacting organisms and their environment.
58. Inscription (in- into, scribe- write) – Words written or carved into a surface.
59. Microscope (micro- small, scope- view) – An instrument for viewing very small objects.
60. Biology (bio- life, logy- study) – The study of living organisms.
61. Phobia (phob- fear) – An irrational fear of something.
62. Geothermal (geo- earth, thermal- heat) – Related to heat from the Earth’s interior.
63. Aquatic (aqua- water) – Related to water.
64. Plasma (plasm- form) – The liquid part of blood or a state of matter.
65. Eradicate (e- out, radic- root) – To completely destroy or remove.
66. Biography (bio- life, graph- write) – A detailed description of someone’s life.
67. Automobile (auto- self, mobile- move) – A vehicle that moves on its own.
68. Chlorophyll (chloro- green, phyll- leaf) – A green pigment in plants.
69. Hypothermia (hypo- under, therm- heat) – A condition of dangerously low body temperature.
70. Nucleus (nucle- kernel) – The central part of a cell containing genetic material.
71. Supernatural (super- above, natural- nature) – Beyond the laws of nature.
72. Spectacle (spect- see) – An impressive display or performance.
73. Synthesis (syn- together, thesis- placing) – Combining parts to form a whole.
74. Ultrasonic (ultra- beyond, sonic- sound) – Sound waves beyond the range of human hearing.
75. Bilingual (bi- two, lingual- language) – Able to speak two languages.
76. Psychic (psych- mind) – Relating to the mind or soul; beyond normal perception.
77. Microorganism (micro- small, organism- living thing) – A tiny living thing, usually a single cell.
78. Imposter (im- not, poster- one who stands) – A person who pretends to be someone else.
79. Oxygen (oxy- sharp, gen- produce) – A gas essential for respiration.
80. Reconstruct (re- again, struct- build) – To build something again.

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