(idiomatic) To attempt to prevent a problem that has already occurred.

a lotion, gel, or liquid used after finishing shaving

An earthquake that follows in the same vicinity as another, usually larger, earthquake (the "mainshock"). / (figuratively) By extension, any result or consequence following a major event.

plural of aftershock

plural of aftershave

plural of aftershaft

(ornithology) An accessory plume arising from the posterior of the contour feathers of many birds.

A non-violent movement of the ground following an earthquake

plural of afterslip

Taking place immediately after school classes. / Of or pertaining to a program intended to care for and educate children in the time immediately after school classes.