普及【ふきゅう】
diffusion, spread, popularization, promulgation, familiarization
追及【ついきゅう】
investigation (e.g. into someone's guilt), questioning, pressing, hounding, pinning down, catching up, overtaking
及ぶ【およぶ】
to reach, to amount to, to befall, to happen to, to extend, to go on (for, until), to be up to the task, to come up to, to compare with, to be a match (for), to commit (a crime), to require (to do)
言及【げんきゅう】
reference, allusion
及ぼす【およぼす】
to exert (influence), to exercise, to cause (e.g. damage), to do (e.g. harm), to bring about (e.g. benefits), to extend, to have an effect (on)
及び【および】
and, as well as