(rail transport) The visual appearance of a railway signal

(railways) One of the danger signals or safety signals which guide the movement of trains in a block system, often coupled with a switch so that opening or closing the switch also operates the signal.

(chiefly US, automotive) each of the flashing lights on each side of a vehicle which indicate a turn is being made to left or right, or a lane change etc.

A physical signature on a document, typically done in ink.

Alternative form of virtue signalling

(business) Someone who signs documents without reviewing them / (business) A mortgage servicing employee who approves a foreclosure without reviewing relevant documents

An autograph extracted from a signed document / (trading cards) A card featuring an autograph cut from another document or signed on a separate piece of paper or cardboard

(neologism) Somebody who engages in virtue signalling.

plural of signal indication

plural of signet ring