väylissä

Väylissä is the Finnish inessive plural form of the noun väylä, literally meaning "in the routes" or "in the channels". As a grammatical form, it indicates location or position inside multiple lanes, channels, paths or means of passage. The base word väylä denotes a way, route or channel used in both literal and figurative senses.

In everyday and technical usage väylissä appears in contexts such as liikenneväylät (transport routes), vesiväylät (waterways), ilmaväylät (air routes) and tietoliikenneväylät (data channels). It can describe physical placement—e.g., objects or traffic being located within several channels—or abstract conditions, as when processes or flows occur within organizational or technological pathways.

The term is common in discussions of infrastructure planning, maritime and aviation navigation, and information technology, where it helps specify that an action or state pertains to multiple channels or routes. In Finnish grammar, väylissä contrasts with forms like väylä (nominative singular), väylät (nominative plural) and väylässä (inessive singular), showing how case and number combine to express spatial relations.

Usage examples include phrases meaning "in the waterways" or "within the routes," and the form follows regular Finnish vowel harmony and case-declension patterns.