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1. To be quiet. You kids need to hush up once we go into the church, OK?
2. To cause someone to be quiet. In this usage, a noun or pronoun can be used between "hush" and "up." The baby wouldn't stop crying until she was reunited with her favorite stuffed animal—that hushed her right up!
3. To keep sensitive information from being publicized. In this usage, a noun or pronoun can be used between "hush" and "up." A: "What are we going to do about that witness?" B: "Don't worry, we'll hush him up with some money."
4. slang To kill someone. In this usage, a noun or pronoun can be used between "hush" and "up." Ray hushed up the informant, just as the boss told him to.
hush someone up
1. to make someone quiet. Please hush the children up. I have a telephone call. Hush up those kids!
2. Sl. to kill someone. The gang was afraid the witness would testify and wanted to hush him up. Mr. Big told Sam to hush up Richard.
hush something up
Fig. to keep something a secret; to try to stop a rumor from spreading. We just couldn't hush it up. We wanted to hush up the story, but there was no way to do it.
to be quiet; to get quiet; to stop talking. You talk too much. Hush up! I want you to hush up and sit down!
Keep from public knowledge, suppress mention of. For example, They tried to hush up the damaging details. [First half of 1600s]
1. To stop talking; become quiet: The crowd hushed up as the speaker approached the podium. Hush up—you'll wake the baby!
2. To make someone stop talking or become quiet: The guards hushed up the prisoners. Please hush the kids up—I've got a headache.
3. To prevent something from being talked about; keep something from public knowledge: The government acted quickly to hush up the scandal. The editor hushed the news story up.