Dictionary and Thesaurus

Definition of Backbone

• (n.) The column of bones in the back which sustains and gives firmness to the frame; the spine; the vertebral or spinal column.
• (n.) Anything like , or serving the purpose of, a backbone.
• (n.) Firmness; moral principle; steadfastness.

Synonyms of Backbone

• Anchor
• Mainstay
• Keystone
• Linchpin
• Lynchpin
• Grit
• Guts
• Moxie
• Sand
• Gumption
• Spinal Column
• Vertebral Column
• Spine
• Back
• Rachis
• Spine

Antonyms of Backbone

Homophones of Backbone