Collins COBUILD Advanced Learner's English Dictionary - come along

1. You tell someone to come along to encourage them in a friendly way to do something, especially to attend something. There’s a big press launch today and you’re most welcome to come along. = come on PHRASAL VERB: V P 2. You say ‘come along’ to someone to encourage them to hurry up, usually when you are rather annoyed with them. Come along, Osmond. No sense in your standing around. = come on CONVENTION 3. When something or someone comes along, they occur or arrive by chance. I waited a long time until a script came along that I thought was genuinely funny... It was lucky you came along. PHRASAL VERB: V P, V P 4. If something is coming along, it is developing or making progress. Pentagon spokesman Williams says those talks are coming along quite well... How’s Ferguson coming along? PHRASAL VERB: V P adv, V P