| Word | Definitions | Synonyms |
|---|---|---|
| obelion | (noun) the craniometric point on the sagittal suture near the lamboid suture | - |
| obelisk | (noun) a stone pillar having a rectangular cross section tapering towards a pyramidal top | - |
| (noun) a character used in printing to indicate a second cross reference or footnote when the asterisk has already been used | Synonyms: dagger |