She is a very focussed individual.

She focussed on her studies and achieved excellent grades.

She is focussing on her studies.

Focussing on the task at hand is crucial for success.

She is focussing on her studies.

She focusses on her studies.

The presentation focusses on the key points of the research.

The focusser on the camera helps to adjust the sharpness of the image.

The new website design includes focussable buttons for better user experience.

The focussers in the room were all trained on the speaker.