Tunneleissa

Tunneleissa is a Finnish word meaning “in the tunnels.” It is the inessive plural form of tunneli, which refers to a tunnel. The inessive case expresses location inside something, and the plural suffix -issa/-issä is added when discussing more than one tunnel. The singular form of the same idea is tunnelissa (in the tunnel).

In practice, tunneleissa is used to describe situations, actions, or conditions inside multiple tunnels—for example, in transportation networks, mining operations, or cave explorations. It appears in technical reports, safety guidelines, maps, and descriptive text about built environments or subterranean spaces in Finnish.

The word can be found in sentences such as: “Työt jatkuivat tunneleissa turvatoimien noudattamisen kautta” (Work continued in the tunnels with safety measures followed). Another example: “Valaistus ja ilmanvaihto on suunniteltu tunneli- ja tunneleissa käytettyjen standardien mukaan” (Lighting and ventilation are designed according to the standards used in tunnels and tunnel environments). These constructions illustrate how tunneleissa functions within reporting, planning, and descriptive contexts.

See also tunneli, the Finnish word for tunnel, and related grammatical forms such as tunnelissa (in the tunnel) and tunneleiden/tunneliin (various cases and directions).