Of, or related to signals.

Alternative spelling of virtue signaller

plural of virtue signaler

an instance of sharing or disseminating another's information or material with one's own audience / (engineering) an increase in the capacity, strength, or range of a signal

to share or disseminate another's information or material with one's own audience

(paleontology) The principle that due to the incompleteness of the fossil record, the earliest and latest known occurrences of a taxon will almost never represent the ages of the actual earliest and latest organisms belonging to it.

(Internet) Data used by a signatory to sign something electronically. It may involve cryptography or may simply be a name typed into a document.

(rail transport) A signal set at danger and showing a red light or other stop indication, which a train driver must not pass until it changes or until manually cleared past the signal by a dispatcher.

(economics) A sign, attached to a commodity and concerning its price, that is intended to increase demand for it

plural of signal pistol