Can someone trademark a word or name?

Yes—words and names can function as trademarks if they are distinctive and used to identify source. People say someone trademarked my company name or ask can someone use a trademarked name—much depends on likelihood of confusion, priority, and geographic scope. ^[1][2] Spectrum of distinctiveness Generic terms cannot trademark for those goods; descriptive marks may need acquired distinctiveness; arbitrary or fanciful marks are strongest. Conflicts If another party registers a confusingly similar mark for related goods/services, your use may infringe or face USPTO refusal. Opposition Third parties can oppose applications during publication. Remedies Cease and desist, cancellation, or federal litigation may follow—hire IP counsel for clearance searches. ^[1][2]