或

• Disjunctive conjunction: "or," "either."
• Epistemic adverb: "perhaps," "maybe"; signals conjecture, doubt, or probability.
• Indefinite marker: "a certain," "some"; denotes a specific but unnamed person, place, or thing.

• Indefinite Pronoun/Adjective: Often appears before a noun (e.g., 或人) to function as an indefinite marker.
• Distributive Marker: When appearing in a series (或 A, 或 B, 或 C), it may describe a variety of existing conditions within a group ("some... others...") rather than presenting a choice between alternatives.

Contrast with 惑: while phonetically related, 或 denotes the logical state of uncertainty or alternative, whereas 惑 denotes the psychological state of bewilderment or confusion.

The glyph is rooted in the concept of a bounded territory or "certain plot of land" (related to 國 and 域). The semantic evolution moved from a specific physical place → an unspecified entity → one possibility among many (logical operator).