biensûr

Biensûr is a nonstandard one-word variant of the French expression bien sûr, meaning "of course." In standard orthography the phrase is written as bien sûr, two words, and it is pronounced [bjɛ̃ syʁ].

Etymology and form: the expression combines bien (well) and sûr (sure), from historical roots in Latin bene and securus. The combination signals assent or the perception that a statement is obvious or natural.

Usage and nuance: bien sûr is a common, versatile phrase used to acknowledge a proposition, confirm a expectation, or respond affirmatively. It can convey straightforward agreement in casual speech, polite reassurance in conversation, or a light, ironic tone in humor and media. In more formal writing, alternatives such as évidemment or naturellement may be preferred, while bien sûr remains widely understood in everyday French.

Orthography and variants: the conventional spelling is bien sûr (two words). The single-word form biensûr appears mainly in informal writing, advertising, or digital contexts and is generally considered nonstandard in formal contexts. Users should favor bien sûr in official or academic texts to ensure clarity and correctness.

See also: Bien sûr.