| Idiom | Meaning | Example |
| come by | find, get, obtain | How did you come by that vase? Where did you get it? |
| come clean | tell the truth, admit everything, own up | The police asked him to come clean about the money - to tell them everything he knew. |
| come down hard | punish hard, throw the book at | The teachers come down hard on cheating. They suspend cheaters. |
| come down off your high horse | (See get off your high horse) | |
| come down on like a ton of bricks | reprove, punish harshly | Whenever I make the slightest mistake, my boss comes down on me like a ton of bricks. |
| come down to earth | be realistic, get your head out of the clouds | If she'd come down to earth, if she'd stop dreaming about fame, she could pass her exams. |
| come down with | become sick, become ill | Brenda came down with the flu. She's very sick. |
| come full circle | arrive at the place where you began | "Let's ask the teacher, okay?" "If we do that, we'll have come full circle. Remember?" |
| come hell or high water | no matter what happens, by any means | I'll buy that ranch, come hell or high water. I'm determined. |
| come home to roost | (See chickens come home to roost) |