What does 擦る mean?
擦る is a Japanese verb meaning “to rub, to chafe” in English. It can also be translated as “to repeatedly reuse (a joke, a topic of conversation, etc.), to mash (a button)” depending on context. It is written as 擦る in kanji, する in hiragana, and suru in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
石けんを付けてごしごしこすれば汚れが落ちます。
Rub briskly with soap, and the stain will soon wash off.