diff --git a/source/_data/glossary.yml b/source/_data/glossary.yml
index 505ba4a8945..ba5c42f02c9 100644
--- a/source/_data/glossary.yml
+++ b/source/_data/glossary.yml
@@ -32,6 +32,8 @@
   description: "[Scenes](/components/scene/) capture the states you want certain entities to be. For example a scene can specify that light A should be turned on and light B should be bright red." 
 - topic: HADashboard
   description: "[HADashboard](/docs/ecosystem/hadashboard/) is a modular, skinnable dashboard for Home Assistant that is intended to be wall mounted, and is optimized for distance viewing."
+- topic: hass
+  description: "HASS or [hass](/docs/tools/hass/) is often used as an abbreviation for Home Assistant. It is aslo the comand line tool for accessing"
 - topic: Hass.io
   description: "[Hass.io](/hassio/) is an operating system that will take care of installing and updating Home Assistant, is managed from the Home Assistant UI, allows creating/restoring snapshots of your configuration, and can easily be extended"
 - topic: Cookbook