diff --git a/relationships/definition.json b/relationships/definition.json
index 92f73b8..7494322 100644
--- a/relationships/definition.json
+++ b/relationships/definition.json
@@ -199,6 +199,188 @@
       "format": [
         "misp"
       ]
+    },
+    {
+      "name": "vulnerability-of",
+      "description": "This relationship describes an object which is a vulnerability of another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "works-like",
+      "description": "This relationship describes an object which works like another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "seller-of",
+      "description": "This relationship describes an object which is selling another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "seller-on",
+      "description": "This relationship describes an object which is selling on another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "trying-to-obtain-the-exploit",
+      "description": "This relationship describes an object which is trying to obtain the exploit described by another object",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "used-by",
+      "description": "This relationship describes an object which is used by another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "affiliated",
+      "description": "This relationship describes an object which is affiliated with another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "alleged-founder-of",
+      "description": "This relationship describes an object which is the alleged founder of another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "attacking-other-group",
+      "description": "This relationship describes an object which attacks another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "belongs-to",
+      "description": "This relationship describes an object which belongs to another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "business-relations",
+      "description": "This relationship describes an object which has business relations with another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "claims-to-be-the-founder-of",
+      "description": "This relationship describes an object which claims to be the founder of another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "cooperates-with",
+      "description": "This relationship describes an object which cooperates with another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "former-member-of",
+      "description": "This relationship describes an object which is a former member of another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "successor-of",
+      "description": "This relationship describes an object which is a successor of another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "has-joined",
+      "description": "This relationship describes an object which has joined another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "member-of",
+      "description": "This relationship describes an object which is a member of another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "primary-member-of",
+      "description": "This relationship describes an object which is a primary member of another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "administrator-of",
+      "description": "This relationship describes an object which is an administrator of another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "is-in-relation-with",
+      "description": "This relationship describes an object which is in relation with another object,",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "provide-support-to",
+      "description": "This relationship describes an object which provides support to another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "regional-branch",
+      "description": "This relationship describes an object which is a regional branch of another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "similar",
+      "description": "This relationship describes an object which is similar to another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "subgroup",
+      "description": "This relationship describes an object which is a subgroup of another object.",
+      "format": [
+        "cert-eu"
+      ]
+    },
+    {
+      "name": "suspected-link",
+      "description": "This relationship describes an object which is suspected to be linked with another object.",
+      "format": [
+        "misp"
+      ]
+    },
+    {
+      "name": "same-as",
+      "description": "This relationship describes an object which is the same as another object.",
+      "format": [
+        "misp"
+      ]
     }
   ],
   "description": "Default type of relationships in MISP objects.",