Englishfor English speakers
backbone
Noun
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The backbone is the bones in a person's or animal's back.
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or If you have backbone, you do not back down easily. You stand up for yourself.
If you had any backbone you wouldn't let people tell you what to do all the time.
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The backbone of something is what holds it together or makes it strong.
Customer service is the backbone of our business.
chassis
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noun
the skeleton of a motor vehicle consisting of a steel frame supported on springs that holds the body and motor
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noun
a metal mounting for the circuit components of an electronic device
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noun
(= human body, physique, flesh)
alternative names for the body of a human being
Leonardo studied the human body
he has a strong physique
the spirit is willing but the flesh is weak