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logy

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the study of; a suffix used in many fields of study, such as biology (the study of life) and geology (the study of the Earth).

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mort

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death; a root word that appears in terms like mortal (subject to death) and mortuary (a place where dead bodies are kept).

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graph

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to write; a root word used in terms like autograph (a person's own signature) and photograph (a picture made using light).

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mal

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bad; a root word found in words like malfunction (to function badly) and malnutrition (bad nutrition).

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tele

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from afar; a root word used in terms like telephone (sound from afar) and television (seeing from afar).

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bio

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life; a root word that appears in terms like biology (the study of life) and biography (a written account of someone's life).

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astro

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star; a root word used in terms like astronomy (the study of stars and celestial bodies) and astronaut (a person who travels among the stars).

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ject

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to throw; a root word found in terms like eject (to throw out) and project (to throw forward).

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therm

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heat; a root word used in terms like thermometer (an instrument for measuring heat) and thermal (related to heat).

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auto

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self; a root word found in terms like autobiography (a self-written account of one's life) and automatic (self-operating).