What is the difference between diffuse and infuse? Diffuse is commonly found used as both adjective ("not concentrated or localized") and verb ("to pour out and permit or cause to spread freely," "to scatter"), while infuse is almost entirely restricted to use as a verb.

What is infusion and diffusion?

As nouns the difference between infusion and diffusion

is that infusion is tea (infusion made from herbs) while diffusion is diffusion (physics: the intermingling of the molecules of a fluid due to random thermal agitation).

What is the difference between diffuse and spread?

As verbs the difference between spread and diffuse

is that spread is to stretch out, open out (a material etc) so that it more fully covers a given area of space while diffuse is to spread over or through as in air, water, or other matter, especially by fluid motion or passive means.