what one has heard another person or other people say but does not know to be true

unsubstantiated information

a low, continuous, indistinct sound; a quiet expression of feelings

low, continuous sound

to grumble, chatter, (especially to oneself)

gossip

new or fresh information; report(s) of what has most recently happened

information, revelation

to use one's ordinary voice (not singing etc) to produce (words, sentences); to express one's opinion (during a discussion, about an affair)

make declaration

(action, behaviour etc that causes) general shock, anger, opposition

public embarrassment

that causes something to be known; a person who tells about another's private affairs, makes known a secret etc

gossip; tell rumor

(usually plural) a low, quiet tone; an underlying quality

suggestion, whisper