4-Letter Words Starting F & Ending I

• an extinct volcano in south central Honshu that is the highest peak in Japan; last erupted in 1707; famous for its symmetrical snow-capped peak; a sacred mountain and site for pilgrimages

• shrubby Japanese cherry tree having pale pink blossoms

• the concentration of attention or energy on something

• maximum clarity or distinctness of an image rendered by an optical system

• maximum clarity or distinctness of an idea

• a central point or locus of an infection in an organism

• special emphasis attached to something

• a point of convergence of light (or other radiation) or a point from which it diverges

• a fixed reference point on the concave side of a conic section

• direct one's attention on something

• cause to converge on or toward a central point

• bring into focus or alignment; to converge or cause to converge; of ideas or emotions

• become focussed or come into focus

• put (an image) into focus

• Any alga of the genus Fucus.