Why should synonyms be used with caution in academic writing?

Using synonyms in academic writing should be approached with caution because different words can carry subtle nuances and connotations that may alter the intended meaning. In scholarly work, precision in language is crucial; therefore, substituting a word with a synonym without fully understanding the differences can lead to misinterpretation and diminish the clarity of the writing. Academic writing prioritizes the accuracy of information and arguments, and using the most appropriate terminology helps ensure that the message remains clear and unambiguous.

The other choices do not accurately reflect the principles of effective academic writing. Relying heavily on synonyms for variety may detract from the overall clarity, while invoking them only after a certain word has been mentioned a specific number of times fails to address the importance of meaning. Additionally, limiting their use to the conclusion misses the broader context where precise language is required throughout the entire document.