diff --git a/openmetadata-service/src/main/java/org/openmetadata/service/resources/glossary/GlossaryResource.java b/openmetadata-service/src/main/java/org/openmetadata/service/resources/glossary/GlossaryResource.java
index c4469c4d935..3de852e51db 100644
--- a/openmetadata-service/src/main/java/org/openmetadata/service/resources/glossary/GlossaryResource.java
+++ b/openmetadata-service/src/main/java/org/openmetadata/service/resources/glossary/GlossaryResource.java
@@ -72,7 +72,7 @@ import org.openmetadata.service.util.ResultList;
 @Collection(name = "glossaries", order = 6) // Initialize before GlossaryTerm and after Classification and Tags
 public class GlossaryResource extends EntityResource<Glossary, GlossaryRepository> {
   public static final String COLLECTION_PATH = "v1/glossaries/";
-  static final String FIELDS = "owner,tags,reviewers,usageCount,termCount,domain";
+  static final String FIELDS = "owner,tags,reviewers,usageCount,termCount,domain,extension";
 
   public GlossaryResource(CollectionDAO dao, Authorizer authorizer) {
     super(Glossary.class, new GlossaryRepository(dao), authorizer);
diff --git a/openmetadata-service/src/main/java/org/openmetadata/service/resources/glossary/GlossaryTermResource.java b/openmetadata-service/src/main/java/org/openmetadata/service/resources/glossary/GlossaryTermResource.java
index b00aa05f749..e471ba866f3 100644
--- a/openmetadata-service/src/main/java/org/openmetadata/service/resources/glossary/GlossaryTermResource.java
+++ b/openmetadata-service/src/main/java/org/openmetadata/service/resources/glossary/GlossaryTermResource.java
@@ -73,7 +73,7 @@ import org.openmetadata.service.util.ResultList;
 @Collection(name = "glossaryTerms", order = 7) // Initialized after Glossary, Classification, and Tags
 public class GlossaryTermResource extends EntityResource<GlossaryTerm, GlossaryTermRepository> {
   public static final String COLLECTION_PATH = "v1/glossaryTerms/";
-  static final String FIELDS = "children,relatedTerms,reviewers,owner,tags,usageCount,domain";
+  static final String FIELDS = "children,relatedTerms,reviewers,owner,tags,usageCount,domain,extension";
 
   @Override
   public GlossaryTerm addHref(UriInfo uriInfo, GlossaryTerm term) {
diff --git a/openmetadata-spec/src/main/resources/json/schema/api/data/createGlossary.json b/openmetadata-spec/src/main/resources/json/schema/api/data/createGlossary.json
index 7fcf26f9a24..0c963cee46c 100644
--- a/openmetadata-spec/src/main/resources/json/schema/api/data/createGlossary.json
+++ b/openmetadata-spec/src/main/resources/json/schema/api/data/createGlossary.json
@@ -50,6 +50,10 @@
     "domain" : {
       "description": "Fully qualified name of the domain the Glossary belongs to.",
       "type": "string"
+    },
+    "extension": {
+      "description": "Entity extension data with custom attributes added to the entity.",
+      "$ref": "../../type/basic.json#/definitions/entityExtension"
     }
   },
   "required": ["name", "description"],
diff --git a/openmetadata-spec/src/main/resources/json/schema/api/data/createGlossaryTerm.json b/openmetadata-spec/src/main/resources/json/schema/api/data/createGlossaryTerm.json
index 06f990f0c8d..5eb70c5d359 100644
--- a/openmetadata-spec/src/main/resources/json/schema/api/data/createGlossaryTerm.json
+++ b/openmetadata-spec/src/main/resources/json/schema/api/data/createGlossaryTerm.json
@@ -75,6 +75,10 @@
       "description" : "Glossary terms that are children of this term are mutually exclusive. When mutually exclusive is `true` only one term can be used to label an entity from this group. When mutually exclusive is `false`, multiple terms from this group can be used to label an entity.",
       "type" : "boolean",
       "default" : "false"
+    },
+    "extension": {
+      "description": "Entity extension data with custom attributes added to the entity.",
+      "$ref": "../../type/basic.json#/definitions/entityExtension"
     }
   },
   "required": ["glossary", "name", "description"],
diff --git a/openmetadata-spec/src/main/resources/json/schema/entity/data/glossary.json b/openmetadata-spec/src/main/resources/json/schema/entity/data/glossary.json
index 476e38fa74e..c2d8789fd62 100644
--- a/openmetadata-spec/src/main/resources/json/schema/entity/data/glossary.json
+++ b/openmetadata-spec/src/main/resources/json/schema/entity/data/glossary.json
@@ -3,6 +3,7 @@
   "$schema": "http://json-schema.org/draft-07/schema#",
   "title": "Glossary",
   "description": "This schema defines the Glossary entity. A Glossary is collection of hierarchical GlossaryTerms.",
+  "$comment": "@om-entity-type",
   "type": "object",
   "javaType": "org.openmetadata.schema.entity.data.Glossary",
   "javaInterfaces": ["org.openmetadata.schema.EntityInterface"],
@@ -98,6 +99,10 @@
     },
     "votes" : {
       "$ref": "../../type/votes.json"
+    },
+    "extension": {
+      "description": "Entity extension data with custom attributes added to the entity.",
+      "$ref": "../../type/basic.json#/definitions/entityExtension"
     }
   },
   "required": ["id", "name", "description"],
diff --git a/openmetadata-spec/src/main/resources/json/schema/entity/data/glossaryTerm.json b/openmetadata-spec/src/main/resources/json/schema/entity/data/glossaryTerm.json
index 314826ffbaa..78374291f3a 100644
--- a/openmetadata-spec/src/main/resources/json/schema/entity/data/glossaryTerm.json
+++ b/openmetadata-spec/src/main/resources/json/schema/entity/data/glossaryTerm.json
@@ -3,6 +3,7 @@
   "$schema": "http://json-schema.org/draft-07/schema#",
   "title": "GlossaryTerm",
   "description": "This schema defines te Glossary term entities.",
+  "$comment": "@om-entity-type",
   "type": "object",
   "javaType": "org.openmetadata.schema.entity.data.GlossaryTerm",
   "javaInterfaces": ["org.openmetadata.schema.EntityInterface"],
@@ -140,6 +141,10 @@
       "type" : "boolean",
       "default" : "false"
     },
+    "extension": {
+      "description": "Entity extension data with custom attributes added to the entity.",
+      "$ref": "../../type/basic.json#/definitions/entityExtension"
+    },
     "domain" : {
       "description": "Domain the Glossary Term belongs to. When not set, the Glossary TErm inherits the domain from the Glossary it belongs to.",
       "$ref": "../../type/entityReference.json"