This is the 2299th most frequent Russian word.
коснулись
"Коснулись" means "touched" in English.
Here, 'коснулись' is used metaphorically to indicate discussing or mentioning a topic.
Мы коснулись этой темы на последней встрече.
We touched upon this topic at the last meeting.
In this context, 'коснулись' describes a physical touch or contact.
Его пальцы едва коснулись клавиш.
His fingers barely touched the keys.
The usage here of 'коснулись' indicates a direct proximity or physical contact not happening.