All 5 Uses of

focus

in

The Perks of Being a Wallflower

Okay …. now focus on the piece of paper that's just sitting there on the ground.
p. 102.3

focus = look closely

And I focused on the piece of paper that was sitting on the ground.
p. 102.4

focused = looked and concentrated

The trance happens when you don't focus on anything, and the whole big picture swallows and moves around you.
p. 102.6 *

focus = concentrate

Definitions:

(1) (focus as in: Turn your focus to question #2.)
verb: to concentrate, look at, or pay attention to

noun: the act of concentration, or the ability to concentrate

(to concentrate is to direct attention or effort towards a single thing)
(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)