Englishfor English speakers
complicated
Adjective
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If something is complicated, then it is complex or is hard to understand.
The instruction manual for how to make the robot was very complicated.
disease
Noun
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If a person, animal, or plant is ill, it has a disease.
1.4 million children suffer from heart disease in Pakistan.
There are many different germs which cause diseases.
disease
Verb
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To cause unease; to annoy, irritate.
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To infect with a disease.