coïncident

Coïncident is the masculine singular form of the French adjective coïncident, meaning coincident: occurring at the same time or in the same place. The feminine form is coïncidente, and the masculine plural is coïncidents (with the feminine plural coïncidentes). In French usage, the term describes events, conditions, or objects that align temporally or spatially, and it can also appear in mathematical or scientific contexts to indicate identical positions or states. The related noun is coïncidence.

In English, the standard adjective is coincident, used similarly to describe things that occur simultaneously or share a location, or to indicate identical positioning in a geometric or observational sense. The English noun form is coincidence, and the verb form is coincide. The French form coïncident is not commonly used in English-language writing and is typically encountered in French texts or bilingual contexts.

Etymology and orthography: coïncident derives from Latin components meaning “together” (con-) and “to fall together” (incidere), via Old French or Latin precursors. The modern French spelling includes a diaeresis on the ï to indicate that the vowels are pronounced separately. In English typography, the diacritic is generally omitted, and the word appears as coincident. The concept connects to related terms such as coincidence, coincide, and coincidentia, which share the same linguistic root.