0 by one person telling another in speech, not in writing -- mundtlig
She got the information by word of mouth.
However, they would be promoted by word of mouth and the credibility of the worker.
Advertising by word of mouth was frequently suggested (19%), and promotion through the general practice (13%).
We are a people of oral tradition, we hand down things by word of mouth.
People can pass the formula by word of mouth, or by printing it and giving it away; the idea's supply will never dwindle.
News of miraculous healings and conversions was propagated by word of mouth, and by the press which was often hostile.
News of the winning number for this ostensibly clandestine but quintessentially public lottery certainly spread across the city by word of mouth, too.
Subjects, who were recruited via posters placed in the local university community and by word of mouth, were remunerated for their participation.
Fortunately, contract theory diffused quickly by word of mouth and soon attracted the interest of major departments, which put some of the early papers on their macroeconomics reading lists.
