Table of Contents WORDNET DICTIONARY
ROGET THESAURUS

RELATED WORDS : keep keep abreast keep alive keep an eye on keep apart keep at it keep away keep back keep books keep company keep down keep faith keep from keep going keep guard keep house keep in keep in line keep in mind keep in sight keep in touch keep note keep off keep on keep one's distance keep one's eyes off keep one's eyes open keep one's eyes peeled keep one's eyes skinned keep one's hands off keep one's mouth shut keep one's nose to the grindstone keep one's shoulder to the wheel keep open keep out keep pace keep quiet keep score keep step keep tabs on keep the peace keep to oneself keep up mum

WORDNET DICTIONARY

Verb keep mum has 1 sense

• keep mum(v = verb.communication) be quiet, belt up, button up, clam up, close up, dummy up, shut up - refuse to talk or stop talking; fall silent; "The children shut up when their father approached"
Sample sentence:
Somebody ----s

ROGET THESAURUS

keep mum

Taciturnity

VB be silent, keep silence, keep mum, hold one's tongue, hold one's peace, hold one's jaw, not speak, say nothing, keep one's counsel, seal the lips, close the lips, button the lips, zipper the lips, put a padlock on the lips, put a padlock on the mouth, put a bridle on one's tongue, bite one's tongue, keep one's tongue between one's teeth, make no sign, not let a word escape one, keep a secret, not have a word to say, hush up, hush, lay the finger on the lips, place the finger on the lips, render mute, stick in one's throat.

For further exploring for "keep mum" in Webster Dictionary Online