lennukil
Lennukil is the adessive singular form of the Estonian noun lennuk, meaning the airplane. It expresses location on, at, or along the surface of the aircraft and is used when describing something associated with the airplane in a spatial sense. In contrast, lennukis is used for being inside the plane, such as within the cabin.
Grammatical note: Estonian marks location with cases, and the adessive case is formed with the suffix -il
Usage and examples: Lennukil is typically employed to describe things that are on the exterior of the
See also: Estonian language, Adessive case, Lennuk, Location expressions in Estonian.