All 5 Uses

focus
in
Pretty Little Liars
(Edited)

It used to be such a delight to see them, but today she focused in on it, closed one eye, and pretended to crush the balloon between her thumb and pointer finger.
Chpt 2

focused = concentrated
She said your head seems to be somewhere else, not focused on swimming.
Chpt 18 *

focused = concentrating
Then Aria's eyes focused on someone behind her.
Chpt 20

focused = looked
Her eyes focused.
Chpt 24 *

focused = adjusted (to see clearly)
The camera stayed focused on the Ali shrine, as they called it, the candles, Beanie Babies, wilted flowers people no doubt just picked out of neighbors' gardens, marshmallow Peeps—Ali's favorite candy—and of course photos.
Chpt 33

focused = pointed

Definitions:

(1) (focus as in: Turn your focus to question #2.)
to direct attention or effort toward a single thing; or the ability to do so without getting distracted
(2) (focus as in: The focus of our study is...)
where attention is concentrated or directed
(3) (focus as in: bring into focus; or out of focus)
a state where something has come into view or can be seen clearly; or an adjustment made to permit a clear view
(4) (focus as with technical usage)
technical usage typically involves some sense of center or concentration such as:
- physics — a point where things come together such as the point where light rays meet
- geometry — a fixed reference point (as of a parabola)
- geology — the point of origin of an earthquake
See a comprehensive dictionary for other less common meanings.
(5) (meaning too rare to warrant focus)