We found one dictionary that defines the word hush-up:

General (1 matching dictionary)

1. hush-up: Wiktionary

Definitions from Wiktionary (hush-up) ▸ noun:  censorship; blue-penciling ▸ Words similar to hush-up ▸ Usage examples for hush-up ▸ Idioms related to hush-up ▸ Wikipedia articles (New!) ▸ Popular adjectives describing hush-up ▸ Words that often appear near hush-up ▸ Rhymes of hush-up ▸ Invented words related to hush-up