diff --git a/package-lock.json b/package-lock.json
index cf3d06d..82badbe 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
       "dependencies": {
         "@ehmpathy/error-fns": "1.3.7",
         "domain-glossaries": "1.0.0",
-        "domain-objects": "0.24.2",
+        "domain-glossary-geocode": "1.0.1",
         "type-fns": "1.19.0",
         "zipcodes": "8.0.0"
       },
@@ -8481,6 +8481,18 @@
         "node": ">=8.0.0"
       }
     },
+    "node_modules/domain-glossary-geocode": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/domain-glossary-geocode/-/domain-glossary-geocode-1.0.1.tgz",
+      "integrity": "sha512-4l86EcpYFdbSaldXGWWkmgY5NNg1g1jvKQoxDmMNXytSLt+lmFnCWGNNrcHd5RhK2jNtsnsBlAlsez2pABc27Q==",
+      "hasInstallScript": true,
+      "dependencies": {
+        "domain-objects": "0.24.2"
+      },
+      "engines": {
+        "node": ">=8.0.0"
+      }
+    },
     "node_modules/domain-objects": {
       "version": "0.24.2",
       "resolved": "https://registry.npmjs.org/domain-objects/-/domain-objects-0.24.2.tgz",
diff --git a/package.json b/package.json
index 53925a7..e342e42 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
   "dependencies": {
     "@ehmpathy/error-fns": "1.3.7",
     "domain-glossaries": "1.0.0",
-    "domain-objects": "0.24.2",
+    "domain-glossary-geocode": "1.0.1",
     "type-fns": "1.19.0",
     "zipcodes": "8.0.0"
   },
diff --git a/readme.md b/readme.md
index 9e3c4b2..0de579a 100644
--- a/readme.md
+++ b/readme.md
@@ -12,7 +12,7 @@ enable static-type checks for postcodes
 - `isPostcode`
 
 declare useful procedures to operate on postcodes
-- e.g., `getGeocodeOfPostcode`
+- e.g., `getCentroidOfPostcode`
 
 
 # install
@@ -42,6 +42,6 @@ const postcode: Postcode = isPostcode.assure('33127');
 ### get the geocode of a postcode
 
 ```ts
-const centroid: Geocode = getGeocodeOfPostcode('33127')
+const centroid: Geocode = getCentroidOfPostcode('33127')
 ```
 
diff --git a/src/domain/Geocode.ts b/src/domain/Geocode.ts
deleted file mode 100644
index 7143bd4..0000000
--- a/src/domain/Geocode.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-import { DomainLiteral } from 'domain-objects';
-
-// todo: spinout into own glossary: domain-glossary-geocode
-
-export interface Geocode {
-  latitude: number;
-  longitude: number;
-}
-
-export class Geocode extends DomainLiteral<Geocode> implements Geocode {}
diff --git a/src/getCendroidOfPostcode.ts b/src/getCentroidOfPostcode.ts
similarity index 90%
rename from src/getCendroidOfPostcode.ts
rename to src/getCentroidOfPostcode.ts
index 911d335..f8f9f56 100644
--- a/src/getCendroidOfPostcode.ts
+++ b/src/getCentroidOfPostcode.ts
@@ -1,7 +1,7 @@
 import { UnexpectedCodePathError } from '@ehmpathy/error-fns';
+import { Geocode } from 'domain-glossary-geocode';
 import zipcodes from 'zipcodes';
 
-import { Geocode } from './domain/Geocode';
 import { Postcode } from './domain/Postcode';
 
 export const getCentroidOfPostcode = (input: Postcode): Geocode => {
diff --git a/src/index.ts b/src/index.ts
new file mode 100644
index 0000000..7645eeb
--- /dev/null
+++ b/src/index.ts
@@ -0,0 +1,2 @@
+export * from './domain/Postcode';
+export * from './getCentroidOfPostcode';