As much as possible; deliberately making an effort to do something (often used in somewhat formal contexts).
会議では努めて簡潔に話すようにした。
In the meeting I tried to speak as concisely as possible.
彼は風邪でも努めて出社した。
He made an effort to go to work even though he had a cold.
その日は努めて笑顔で対応した。
That day I made an effort to respond with a smile.