亦

Additive: “also,” “too,” or “likewise.”

Assertive/Intensifying: “indeed,” “certainly,” or “precisely.”

Concessive: “still,” “even,” or “nonetheless.”

Functions as an additive adverb marking a parallel between subjects or states. In argumentative or philosophical prose, it appears in concessive constructions—often following a conditional or contradictory premise—to indicate that a state persists despite a counter-condition. When no preceding parallel is evident, it may function as a particle of assertion or emphasis reinforcing the truth-claim of the predicate.

Contrast with 也 (yě): While both mark “also,” 亦 primarily acts as an adverb modifying the predicate and is placed within the sentence to perform specific logical work. 也 frequently functions as a modal particle at the end of a clause to mark a state of being or provide a rhythmic close. In texts employing both, 亦 is generally more pointed and assertive, whereas 也 may be more atmospheric or structural.

When translating the additive sense, consider whether the author is simply adding an item to a list or asserting a shared nature/logical consequence between entities. If a literal translation of “also” results in a nonsensical or clunky sentence, check if the glyph is instead reinforcing the truth-claim of the predicate (assertive use).