Understanding the Idiom "Word of Mouth"

The question asks for the most appropriate meaning of the idiom within the context provided: "A piece of information received by word of mouth has no authenticity." We need to focus on what "word of mouth" means.

The phrase "word of mouth" refers to information that is passed from one person to another through spoken communication rather than through written or mass media. Think of it as people talking to each other directly.

Analyzing the Options for "Word of Mouth"

Let's look at the given options and see which one best describes information received "by word of mouth".

1. through an official order
2. through rumours
3. in written form
4. in spoken form

Evaluating Each Option

• Option 1: through an official order
  An official order is usually formal, written down, and comes from someone in authority. This is not what "word of mouth" means. Information received this way is typically documented, not just spoken.
• Option 2: through rumours
  Rumours are often spread by word of mouth, but "word of mouth" is the *method* of communication (speaking), while "rumours" are the *type* of information (often unverified stories). While related, the idiom specifically refers to the *way* the information is passed, not necessarily its truthfulness or nature as a rumour. The core meaning is about the form of communication.
• Option 3: in written form
  This is the opposite of "word of mouth". Information received in written form is read, not spoken and heard directly from a person. Examples include letters, emails, or documents.
• Option 4: in spoken form
  This directly matches the meaning of "word of mouth". When information is passed "by word of mouth," it is spoken from one person to another. This option accurately describes the form in which the information is received.

Identifying the Correct Meaning

Based on the analysis, "word of mouth" means information communicated orally, or in spoken form. Therefore, the most appropriate meaning of receiving information by word of mouth is receiving it in spoken form.

The phrase "A piece of information received by word of mouth has no authenticity" uses the idiom to say that information heard directly from people talking, rather than from a reliable written source or official channel, might not be authentic or trustworthy. But the meaning of "word of mouth" itself focuses on the spoken nature of the communication.

Conclusion

The phrase "word of mouth" describes communication that happens by people talking to each other. This is best represented by receiving information "in spoken form".

Revision Table: Understanding Communication Methods

Additional Information: Idioms and Communication

Idioms are phrases or expressions whose meaning cannot be deduced simply from the literal meaning of their words. "Word of mouth" is a common idiom related to communication methods.

• Communication can happen in many ways: speaking, writing, using gestures, etc.
• "Word of mouth" emphasizes the direct, personal, spoken transfer of information.
• This method is often associated with informal communication, personal recommendations, or the spread of news within a community.
• In some contexts, like marketing, "word of mouth" is considered a powerful form of recommendation because it comes from trusted sources (friends, family).
• However, as the original sentence implies, information received only by word of mouth might lack formal verification or documentation, potentially affecting its authenticity or reliability depending on the source.