To uncover means to remove whatever is hiding or covering something, revealing what was underneath. When archaeologists uncover ancient artifacts, they carefully brush away centuries of dirt and soil to expose pottery, tools, or building foundations that no one has seen in thousands of years. When you uncover a pot on the stove, you lift the lid to see what's cooking inside.

The word also means to discover or find out something that was hidden or secret. A journalist might uncover important facts about a story by asking questions and investigating carefully. A student doing research might uncover an interesting detail about Abraham Lincoln that most people don't know. When detectives uncover evidence of a crime, they find clues that were concealed or overlooked.

Notice that uncovering often requires effort and attention. Things don't usually uncover themselves. You have to look carefully, dig deeper, or remove layers to reveal what's hidden. Whether you're uncovering a sandbox toy buried in the sand or uncovering the truth about how your grandmother's family immigrated to America, you're bringing something from hidden to visible, from unknown to known.