vierailulle

Vierailulle is the allative case form of the Finnish noun vierailu (visit), used to indicate movement or direction toward a visit. In grammatical terms, it combines the base noun with the allative suffix -lle, producing a phrase equivalent to English "to a visit" or "for a visit."

The form is commonly used with verbs that denote motion or invitation, for example mennä (to go), tulla (to come) and kutsua (to invite): Menemme vierailulle (We are going on a visit); Hän kutsui meidät vierailulle (He/she invited us to visit). It contrasts with vierailulla (adessive case), which describes being on or at a visit rather than moving toward it: Presidentti on vierailulla Helsingissä (The president is on a visit in Helsinki).

Vierailulle appears in everyday social contexts (visiting friends or relatives) and in formal contexts (official or state visits). The noun vierailu itself derives from vieras (guest, stranger) plus the deverbal/nominalizing element -ailu, and vierailulle follows regular Finnish case inflection patterns.

Related forms include vierailu (basic noun), vierailulla (adessive), vierailusta (elative), and vierailija (visitor). Understanding the distinction between movement (–lle) and location (–lla) is key to correct use.