Use "?" for one missing letter: pu?zle. Use "*" for any number of letters: p*zle. Or combine: cros?w*d
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The bookmarks menu in Mozilla Firefox—both a live (Wikinews) and a static (Wikipedia) bookmark are depicted. Bookmarks have been incorporated in browsers since the Mosaic browser. — “Bookmark (World Wide Web) - Wikipedia, the free encyclopedia”, en.wikipedia.org
A bookmark is a thin marker, commonly made of paper or card, used to keep one's place in a book and so be able to return to it with ease. Other frequently used materials for bookmarks are leather, metals like silver and brass, silk, wood and fabrics. — “Bookmark - Wikipedia, the free encyclopedia”, en.wikipedia.org
Unlike file sharing, the resources themselves aren't shared, merely bookmarks that reference them. They also enable viewing bookmarks associated with a chosen tag, and include information about the number of users who have bookmarked them. — “Social bookmarking - Wikipedia, the free encyclopedia”, en.wikipedia.org