The HiWords - Vocabulary Manager plugin transforms vocabulary building into a seamless part of your reading flow. It uses Obsidian's Canvas files to visually manage and categorise words, enabling users to create multiple vocabulary books with flexible layouts and colour-coded word cards. As you read, the plugin highlights known words from your collections, adapts highlight colours from the Canvas settings, and lets you instantly access definitions via hover popups that support markdown formatting. A sidebar panel shows all relevant words in the current note for quick navigation, while a right-click or command palette action makes adding new words effortless.