A "sign" is a physical message. It can be written or formed with the hands. It can be composed of words or symbols. A "signal" is the message intended to be conveyed by the sign. For example, a "stop sign" is a posted image with the word "STOP" printed on it, or it can have a picture of a raised hand printed on it. The signal it conveys is "stop your car!". The two ideas are often confused, so there is much overlap. It is similar to the difference between "numbers" and "numerals". A numeral, like "3", is a symbol. The idea it conveys, "three", is an idea that exists apart from the numeral.

We sign a signal. A signal gives people warning or urges people to do something while a sign gives you information that helps you decide what to do next. Hope this helps :)

Sign is symbols, signal is a indicator. Message me if you want to practice English speaking

The words are related, and they "overlap" sometimes, but they are often not the same. A Sign = علامة تراها في المحل ، أو لعرض اسم الشارع. A Signal = إشارة مرور كهربائية ، إشارة صوتية كهربائية ، إشارة راديو. غالبًا ما تستخدم هاتان الكلمتان بطرق شعرية أو بمعنى رمزي. حظا طيبا وفقك الله!

They are both giving information and are quite similar. A signal indicates or sends us info, and a sign usually shows us info.