suposición

suposición is a Spanish noun that refers to an idea or belief held without proof or definitive evidence. The term is derived from the Latin suppositio, meaning a putting into place or setting forth, and it entered the modern Spanish lexicon in the seventeenth century. In everyday use it typically describes an informal assumption, guess or speculation about a situation, intention or fact that is not yet confirmed.

In linguistic contexts supostanga is often considered a weaker form of hypothesis. It can be employed both in colloquial speech—“suposición de que llegará tarde”—and in more formal discourse, such as legal or ethical analysis, where an assumption may be stated to establish a line of reasoning before evidence is presented. It is similar to the English words "supposition" or "assumption" but does not imply the same level of logical scrutiny as a formal hypothesis. The verb form, supor, is rarely used. The plural form, supuestos, appears mainly in psychological or sociological studies to denote underlying beliefs that shape behavior.

In logic and statistics, a suposition may serve as a baseline premise until it is falsified by data. In philosophy, “suposición” is a key term in discussions of epistemic justification, as it distinguishes warranted belief from mere conjecture. The concept is also crucial in game theory, where players often make strategic supuestos about opponents’ preferences in the absence of complete information.