Focus

concentrare

(concentration of attention)

focaliza

(to cause (rays of light, etc) to converge at a single point)

focaliza

((transitive, optics) to adjust (a lens, an optical instrument))

se concentra

((intransitive) to concentrate one's attention)

se concentra (on/upon: pe/asupra)

((intransitive) to concentrate one's attention on something)