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back·bone
 backbone
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- pronunciation:
- baek
bon
- features:
- Word Explorer
| part of speech: |
noun |
| definition 1: |
Your backbone is the row of bones that runs down the center of your back. All the bones are connected to each other. Another word for backbone is spine.
Humans and many animals have a backbone, but some animals, like insects, don't have a backbone. Animals that don't have a backbone are called "invertebrates."
- synonyms:
- spine
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| definition 2: |
When we say that someone has backbone, we mean they have courage to do the right thing.
Maya showed real backbone in defending her friend against that bully.- synonyms:
- character
- similar words:
- courage, determination, nerve, resolve, strength
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