Describe things made up of many connected parts.
The idea
Complex describes something with many connected parts. It can stand before a noun or after a linking verb.
Examples
- The city has a complex transport network.
- The recipe uses a complex mixture of spices.
- Their plan became more complex over time.
- A complex pattern appeared in the data.
- The machine is complex but easy to operate.
- Several complex systems control the building.
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Watch out
Complex does not always mean difficult to use; a machine can have intricate workings and simple controls.
Try it yourself
Choose the correct answer. The network has many connected parts; it is ___. (complex / single)
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complex
complex describes the network, which has many connected parts.
Choose the correct answer. The new design has more connected parts; it is ___. (more complex / less complex)
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more complex
more complex compares the newer design with the older one.
Choose the correct answer. Its internal structure is complex, but the controls are simple. It is ___. (easy to use / impossible to use)
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easy to use
easy to use can coexist with a complex internal structure.
Practice round
Answer questions and rebuild English sentences to practise. Your score is shown.
Choose the correct answer. The network has many connected parts; it is ___. (complex / single)
Choose the correct answer. The new design has more connected parts; it is ___. (more complex / less complex)
Choose the correct answer. Its internal structure is complex, but the controls are simple. It is ___. (easy to use / impossible to use)
Tap the words in the right order.
Tap the words in the right order.
Tap the words in the right order.
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Describe a complex system and explain its parts.