Used to describe a situation or decision that has both significant benefits and significant drawbacks.
“Working from home is a double-edged sword; it offers freedom but can blur work-life boundaries.”
“Globalization is a double-edged sword, bringing economic growth but also cultural homogenization.”
Use this idiom in Speaking Task 7 when your opinion is nuanced and the topic has clear pros and cons, for example 'Social media is a double-edged sword — it connects people but can also spread misinformation.' Idioms like this can boost your vocabulary score, but briefly explain both sides so the meaning stays clear to the rater.
Synonyms: a mixed blessing, a two-sided issue, pros and cons