Touch on
/tʌtʃ ɒn/B2
UpperIntermediate
1. To mention or discuss a subject briefly without going into details.
- The professor touched on quantum physics during the lecture but didn't go into detail.
- In the meeting, she touched on the budget concerns before moving on to other topics.
2. To deal with a particular subject quickly as part of a larger discussion or presentation.
- He touched on the main themes of the book in his speech.
- The article touches on the economic impacts of climate change but focuses mainly on solutions.
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