The question asks for the meaning of the word Equivocate.

Equivocate Meaning Explained

The word Equivocate means to use ambiguous or evasive language to conceal the truth or avoid committing oneself. It involves speaking unclearly or misleadingly.

Analyzing the Options

• Option 4: To use vague language to conceal the truth. This option directly matches the definition of equivocate. Using vague language is a common tactic when someone wants to avoid revealing the full truth or is trying to mislead without telling an outright lie.
• Option 1 & 2: These options relate to fairness or equal treatment of arguments/sides, which is different from the meaning of equivocate.
• Option 3: To change sides frequently describes someone who is fickle or inconsistent, not necessarily someone using ambiguous language.

Conclusion

Based on the definition, the most appropriate meaning of Equivocate is to use vague language to conceal the truth.