Signaalil
Signaalil is the locative form of the Estonian noun signaal, meaning signal. In standard Estonian, signaalil roughly translates to “at the signal” or “on the signal” and is used to describe location or timing in relation to a signal. It is formed by adding the locative suffix -il to the stem signaal and appears in both everyday language and technical contexts where actions are described in relation to a signal or a triggering event.
In practical use, signaalil commonly occurs in instructions, manuals, and descriptions of signaling systems. It is
Signaalil does not constitute a separate lexical item with a distinct meaning beyond the locative function;