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1 PHRASAL VERB If someone signs off , they write a final message at the end of a letter or they say a final message at the end of a phone conversation. You can say that people such as entertainers sign off when they finish a broadcast. □ [V P ] O.K. I'll sign off. We'll talk at the beginning of the week.

2 PHRASAL VERB When someone who has been unemployed signs off , they officially inform the authorities that they have found a job, so that they no longer receive money from the government. [BRIT ] □ [V P n] If you work without signing off the dole, you are breaking the law. [Also V P ]

▸  sign on PHRASAL VERB When an unemployed person signs on , they officially inform the authorities that they are unemployed, so that they can receive money from the government in order to live. [BRIT ] □ [V P prep] He has signed on at the job centre. □ [V P n] I had to sign on the dole on Monday.

▸  sign over PHRASAL VERB If you sign something over , you sign documents that give someone else property, possessions, or rights that were previously yours. □ [V P n] Two years ago, he signed over his art collection to the city's art museum. □ [V n P ] Last June, he closed his business voluntarily and signed his assets over to someone else.

▸  sign up PHRASAL VERB If you sign up for an organization or if an organization signs you up , you sign a contract officially agreeing to do a job or course of study. □ [V P + as ] He signed up as a steward with P&O Lines. □ [V n P ] He saw the song's potential, and persuaded the company to sign her up. [Also V P + for ]

sign|age /sa I n I dʒ/ N‑UNCOUNT Signage is signs, especially road signs and advertising signs, considered collectively. □  They don't allow signage around the stadium.

sig|nal ◆◇◇ /s I gnəl/ (signals , signalling , signalled ) in AM, use signaling , signaled 1 N‑COUNT A signal is a gesture, sound, or action which is intended to give a particular message to the person who sees or hears it. □  They fired three distress signals. □  As soon as it was dark, Mrs Evans gave the signal. □  You mustn't fire without my signal.

2 VERB If you signal to someone, you make a gesture or sound in order to send them a particular message. □ [V prep/adv] The United manager was to be seen frantically signalling to McClair. □ [V that] He stood up, signalling to the officer that he had finished with his client. □ [V n] She signalled a passing taxi and ordered him to take her to the rue Marengo. [Also V ]

3 N‑COUNT If an event or action is a signal of something, it suggests that this thing exists or is going to happen. □ [+ of ] Kurdish leaders saw the visit as an important signal of support.

4 VERB If someone or something signals an event, they suggest that the event is happening or likely to happen. □ [V n] She will be signalling massive changes in energy policy. □ [V wh] The outcome of the meeting could signal whether there is a political will to begin negotiating.

5 N‑COUNT A signal is a piece of equipment beside a railway, which indicates to train drivers whether they should stop the train or not.

6 N‑COUNT A signal is a series of radio waves, light waves, or changes in electrical current which may carry information. □  …high-frequency radio signals.

si g|nal box (signal boxes ) N‑COUNT A signal box is a small building near a railway, which contains the switches used to control the signals.

signal|man /s I gnəlmæn/ (signalmen ) N‑COUNT A signalman is a person whose job is to control the signals on a particular section of a railway.