fall on verb5 •Of the eyes or gaze: to alight upon. •To occur on a particular day.The first day of spring this year will fall on a Tuesday. •To be assigned to; to acquire a new responsibility, duty or burden; to fall to.This decision is important, and it falls on you to make it. •To experience; to suffer; to fall upon.With the rise of the Internet, some media fell on hard times. •(no longer used) To attack (someone); to join an attack on (someone), especially a surprise attack. formsfell on · fallen on · falling on · falls on