3rd8th

Could you clarify what "3rd8th" refers to? It does not have a single, widely recognized meaning, and the appropriate wiki-style article would depend on the context. Do you want a disambiguation-style entry that outlines possible interpretations across domains (for example branding, fiction, technology, or culture), or do you have a specific reference in mind (such as a model name, a username, a place in a work of fiction, etc.)? If you provide the domain or reference, I can draft a concise, neutral article under 300 words in plain text.