It was the misinformation from Moscow that led to the death of our agent in Paris.

I think it means misleading story and contamination is that sumthing that dont mix well. basically unwanted.

The newsletter contained misinformation that the principal corrected during the meeting.

Misinformation and Fantasy

1. Synonyms
2. Antonyms
3. Definitions
4. Misinformation

The correct answer is "Misinformation". Misinformation does not provide clues to the meaning of a word or phrase in a text, unlike synonyms, antonyms, and definitions which are types of context clues.