- Octennial Adj Noun
- Octet Noun
- Octic Adj Noun
- Octile Noun Adj
- Octillion Noun Num Adj
- Octivalent Adj Noun
- October Noun Pnoun Adj
- Octobrist Noun Adj
- Octocentenary Noun Adj
- Octocopter Noun Adj
- Octocyclic Adj
- Octodecanoic Adj Noun
- Octodecimo Noun Adj
- Octodenary Adj Noun
- Octofluorocyclobutane Noun Adj
- Octofoil Noun Adj
- Octogenarian Adj Noun
- Octogynous Adj
- Octoic Adj
- Octonary Adj Noun
- Octopartite Adj
- Octophobia Noun
- Octoploid Adj Noun
- Octopod Noun Adj
- Octopodic Adj
- Octopolar Adj Noun
- Octopole Noun Adj
- Octopus Noun Adj
- Octoroon Noun Adj
- Octosyllabic Adj Noun
- Octosyllable Noun Adj
- Octovalent Adj
- Octree Noun Adj
- Octroi Noun Adj
- Octroy Noun Verb
- Octuple Adj Noun Verb
- Octuplets Noun
- Octuplicate Adj Noun Verb
- Octupling Noun Pres. Participle
- Octuply Adv
- Octyl Adj Noun
- Octylic Adj
- Octyne Noun Adj
- Ocular Adj Noun
- Ocularist Noun
- Ocularly Adv
- Oculist Noun Adj
- Oculistic Adj
- Oculistics Noun
- Oculoauricular Adj
- Oculocardiac Adj
- Oculocerebrorenal Adj
- Oculocutaneous Adj
- Oculodentodigital Adj
- Oculodermal Adj
- Oculofacial Adj
- Oculogenital Adj
- Oculography Noun
- Oculogyral Adj
- Oculogyric Adj