Simple Definition of backbone
: the row of connected bones that go down the middle of the back and protect the spinal cord
: the most important or strongest part of something
: strength and courage
Full Definition of backbone
2 : something that resembles a backbone: as a : a chief mountain ridge, range, or system b : the foundation or most substantial or sturdiest part of something c : the longest chain of atoms or groups of atoms in a usually long molecule (as a polymer or protein) d : the primary high-speed hardware and transmission lines of a telecommunications network (as the Internet)
3 : firm and resolute character
4 : spine 1c
Examples of backbone in a sentence
She is the backbone of the family.
He showed some backbone by refusing to compromise his values.
First Known Use of backbone
Rhymes with backbone
agon, aitchbone, alone, atone, Bastogne, bemoan, Big Stone, birthstone, Blackstone, bloodstone, bluestone, bondstone, Boulogne, breastbone, bridge loan, brimstone, brownstone, call loan, calzone, Capone, capstone, cell phone, cheekbone, chinbone, cogon, cologne, Cologne, colon, colón, Colón, condone, copestone, corn pone, curbstone, cyclone, daimon, dapsone, debone, depone, dethrone, dial tone, disown, Dordogne, downzone, dripstone, drop zone, drystone, earphone, earth tone, end zone, enthrone, estrone, fieldstone, firestone, Firestone, flagstone, flowstone, flyblown, footstone, freestone, free zone, full-blown, gallstone, gemstone, Gijón, goldstone, gravestone, greenstone, grindstone, hailstone, halftone, handblown, hard stone, headphone, headstone, hearthstone, high-flown, hip bone, homegrown, hormone, hornstone, impone, ingrown, inkstone, in stone, intone, jawbone, jewel tone, keystone, León, leone, life zone, limestone, lodestone, long bone, Maidstone, milestone, millstone, moonstone, mudstone, nose cone, oilstone, orgone, ozone, pay phone, peptone, pinbone, pinecone, piñon, pipestone, postpone, potstone, propone, redbone, red zone, rhinestone, sandstone, shade-grown, shinbone, siltstone, snow cone, soapstone, splint bone, strike zone, T-bone, tailbone, thighbone, time zone, toadstone, tombstone, touchstone, touch-tone, tritone, trombone, turnstone, twelve-tone, two-tone, Tyrone, unknown, unthrone, war zone, well-known, whalebone, wheel-thrown, whetstone, windblown, wishbone, Yangon
BACKBONE Defined for Kids
Learn More about backbone
Thesaurus: All synonyms and antonyms for "backbone" Medical Dictionary: Definition of "backbone" Spanish Central: Translation of "backbone" Nglish: Translation of "backbone" for Spanish speakers Britannica English: Translation of "backbone" for Arabic speakers Britannica.com: Encyclopedia article about "backbone"
Seen and Heard
What made you want to look up backbone? Please tell us where you read or heard it (including the quote, if possible).