Across these sources, “f” appears in several distinct but overlapping ways. In Greek lexicons, such as N.T. Ἄρχω , f. ξω [1] and Δακρύω, f. ὐσω [2], “f.” designates the future tense of verbs. In Spanish references, “f.” consistently marks feminine nouns, as in vieja “vigilancia f” [3] or “manufactura , f ., manufacture” [4]. This same usage occurs in French (“aprés-midi , f.” [5]) and Latin grammars, where “f.” indicates a feminine form (e.g., arx , arci-, F. [6]). Elsewhere, “f.” can show page or line continuations (e.g., “291 f.” [7]) or serve as an initial for authors, as with “F. W. P.” [8]. Despite nuanced applications in different languages and contexts, the letter “f” broadly signals a grammatical designation, a citation pointer, or a shorthand for names, emphasizing how a single abbreviation can carry multiple meanings across literary works.