backbone

back-bone · noun

imported

Definitions

noun

  1. 1.

    (Anatomy) The spine; the column of vertebrae forming the axis of the skeleton.

  2. 2.

    Strength of character; determination and courage.

  3. 3.

    The main support or foundation of something; the central or most important part.

Forms

plural: backbones

Phrases & expressions

  • •
    the backbone of — The main support or foundation of.
  • •
    have backbone — To have courage and determination.
  • •
    no backbone — Lacking courage or moral strength.
  • •
    put backbone into — To give strength or resolve to.

Related words

Antonyms: cowardice, weakness
See also: courage, foundation, spine, vertebra
Synonyms: courage, determination, spinal column, spine, vertebrae

Etymology

From English back + bone, a compound word first recorded in the 14th century. The figurative sense of "firmness, resolution" developed in the 19th century.