When something unfolds, it opens up or spreads out from a folded or compact state. You unfold a letter to read it, unfold a map to find your way, or unfold a camping chair so you can sit down. Picture how origami paper starts flat, gets folded into a crane, and then can be carefully unfolded back to its original square.

The word also describes how events develop or reveal themselves over time. A story unfolds as you turn the pages, with each chapter adding new information. A mystery unfolds as the detective discovers clues. When you watch a soccer game, the action unfolds before your eyes as players move the ball downfield, make passes, and attempt shots.

Sometimes people say a plan is unfolding when it's happening according to schedule: “Our surprise party is unfolding perfectly.” Scientists watch experiments unfold to see what results emerge. History teachers help students understand how major events unfold over months or years.

Whether it's opening something physically or watching events develop, unfold captures that sense of something expanding, opening up, or becoming visible after being hidden or compressed.