| Word | Definitions | Synonyms |
|---|---|---|
| linchpin | (noun) pin inserted through an axletree to hold a wheel on | Synonyms: lynchpin |
| (noun) a central cohesive source of support and stability | Synonyms: anchor, backbone, keystone, lynchpin, mainstay | |
| lincomycin | (noun) antibiotic (trade name Lincocin) obtained from a streptomyces bacterium and used in the treatment of certain penicillin-resistant infections | Synonyms: Lincocin |