WordPress doesn't include native meta description fields, so you need an SEO plugin. The three most common options are Yoast SEO, Rank Math, and All in One SEO Pack. After installing any of these, you'll see a meta box below your post or page editor where you can write your meta description, typically with a character counter showing the 150–160 character sweet spot. For Yoast, scroll down to the "Yoast SEO" section and click "Edit snippet." For Rank Math, look for the "Rank Math SEO" panel and expand the "Edit Snippet" area. All in One SEO shows a "AIOSEO Settings" box with a dedicated description field. These plugins also let you bulk-edit meta descriptions through Posts > All Posts or Pages > All Pages by enabling the column view or using their dedicated bulk editor tools. At Ottawa SEO, we typically standardize on one plugin across a client's portfolio to keep the editing workflow consistent. If you're running a headless WordPress setup or a custom theme without plugin support, you'd edit meta descriptions by adding them directly in the theme's header.php file using wp_head hooks, but that's a developer task and breaks the per-page flexibility you actually need for SEO. One thing to watch: some page builders like Elementor or Divi have their own SEO settings panels that can conflict with your main SEO plugin. Disable duplicate fields to avoid confusion about which description actually gets rendered. Always check your source code or use Google's Rich Results Test to confirm the right meta description appears in the HTML head after saving.