1. phrasal verb When you come on to a particular topic, you start discussing it. [V P P n] ⇒ We're now looking at a smaller system but I'll come on to that later. 2. phrasal verb → come If someone comes on to you, they show that they are interested in starting a sexual relationship with you. [informal] [V P P n] ⇒ I don't think that a woman, by using make-up, is trying to come on to a man.
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