backbone

Word parts

back + bone

Pronunciation

• (UK) IPA ^(key): /ˈbækˌbəʊn/, SAMPA: /"b{k%b@Un/
• (US) IPA ^(key): /ˈbækˌboʊn/

• Audio (US)

  (file)

Noun

Singular backbone

Plural backbones

a picture showing a person's backbone

1. (countable) The backbone is the bones in a person's or animal's back.
   • Synonyms: spine and vertebrae
2. (countable & uncountable) If you have backbone, you do not back down easily. You stand up for yourself.
   • Synonyms: strength, will, courage and bravery

   If you had any backbone you wouldn't let people tell you what to do all the time.

3. (countable) The backbone of something is what holds it together or makes it strong.
   • Synonym: foundation

   Customer service is the backbone of our business.