diff --git a/lib/abstractionDefinition.js b/lib/abstractionDefinition.js
index 7d9664d..c96f24d 100644
--- a/lib/abstractionDefinition.js
+++ b/lib/abstractionDefinition.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const {name, version, vendor, library} = require('./primitive.js');
+const {name, version, vendor, library, description} = require('./primitive.js');
 const meta = require('ajv/lib/refs/json-schema-draft-06.json');
 
 const props = {
@@ -45,7 +45,7 @@ const port = {
   type: 'object',
   required: ['description', 'wire'],
   properties: {
-    description: {type: 'string'},
+    description,
     wire: {
       type: 'object',
       required: ['onMaster', 'onSlave'],
diff --git a/lib/component.js b/lib/component.js
index 7c10e21..c93d2cc 100644
--- a/lib/component.js
+++ b/lib/component.js
@@ -1,6 +1,9 @@
 'use strict';
 
-const {name, version, vendor, library, uint, access} = require('./primitive.js');
+const {
+  name, version, vendor, library,
+  uint, access, description, displayName
+} = require('./primitive.js');
 const register = require('./register.js');
 const registerFile = require('./registerFile.js');
 const busInterface = require('./busInterface');
@@ -28,8 +31,8 @@ const wire = {
         ]
       },
       analog: { enum: ['in', 'out', 'inout'] },
-      displayName: { type: 'string' },
-      description: { type: 'string' }
+      displayName,
+      description
     }
   }]
 };
diff --git a/lib/enumeratedValues.js b/lib/enumeratedValues.js
index 1f9fb9c..6c6ec53 100644
--- a/lib/enumeratedValues.js
+++ b/lib/enumeratedValues.js
@@ -1,14 +1,16 @@
 'use strict';
 
-const {id, int} = require('./primitive.js');
+const {
+  id, int, description, displayName
+} = require('./primitive.js');
 
 const enumeratedValue = {
   type: 'object',
   required: ['name', 'value'],
   properties: {
     name: id,
-    description: { type: 'string' },
-    displayName: { type: 'string' },
+    description,
+    displayName,
     // usage
     value: int
   }
diff --git a/lib/field.js b/lib/field.js
index 909eceb..a72ec1d 100644
--- a/lib/field.js
+++ b/lib/field.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const {id, uint, int, access, expression} = require('./primitive.js');
+const {id, uint, int, access, expression, description} = require('./primitive.js');
 const enumeratedValues = require('./enumeratedValues.js');
 
 const modifiedWriteValue = {
@@ -30,7 +30,7 @@ const field = {
   required: ['name', 'bitOffset', 'bitWidth'],
   properties: {
     name: id,
-    description: { type: 'string' },
+    description,
     bitOffset: {oneOf: [expression, uint]}, // base % regWidth in bits
     resetValue: int, // ipxactish
     // resetMask // ipxactish
diff --git a/lib/register.js b/lib/register.js
index 71e113f..a12485b 100644
--- a/lib/register.js
+++ b/lib/register.js
@@ -1,6 +1,9 @@
 'use strict';
 
-const {id, uint, int, access, expression} = require('./primitive.js');
+const {
+  id, uint, int, access, expression,
+  description, displayName
+} = require('./primitive.js');
 const field = require('./field.js');
 
 const register = {
@@ -11,8 +14,8 @@ const register = {
     addressOffset: {oneOf: [expression, uint]}, // in memoryMaps[?].addressUnitBits
     size: {oneOf: [expression, uint]}, // regWidth in bits
     access: access,
-    displayName: { type: 'string' },
-    description: { type: 'string' },
+    displayName,
+    description,
     fields: {
       type: 'array',
       items: field