Meaning of the word backbone in English

What does backbone mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

backbone

US /ˈbæk.boʊn/
UK /ˈbæk.boʊn/
"backbone" picture

Noun

1.

the series of vertebrae extending from the skull to the pelvis, forming the main support of the body

Example:
The human backbone is made up of 33 vertebrae.
He injured his backbone in the accident.
2.

strength of character; firmness

Example:
He showed real backbone in standing up to the bullies.
The team needs a leader with more backbone.
3.

the most important part of a system or organization, providing support for the whole

Example:
Small businesses are the backbone of the economy.
The internet's high-speed fiber optic cables form its main backbone.
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