Peek, peak, and pique: they sound the same but mean very different things. The first one we learn is peek: it has to do with looking, especially furtively or quickly or through a small space, as in "open the box and peek inside." It's both a noun and a verb; when you peek, you take a peek. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.