diff --git a/lib/commons/aria/index.js b/lib/commons/aria/index.js
index 5805de6747..3a67810fe3 100644
--- a/lib/commons/aria/index.js
+++ b/lib/commons/aria/index.js
@@ -71,6 +71,9 @@ lookupTables.attributes = {
 		type: 'nmtoken',
 		values: ['true', 'false', 'spelling', 'grammar']
 	},
+	'aria-keyshortcuts': {
+		type: 'string'
+	},
 	'aria-label': {
 		type: 'string'
 	},
@@ -84,6 +87,10 @@ lookupTables.attributes = {
 		type: 'nmtoken',
 		values: ['off', 'polite', 'assertive']
 	},
+	'aria-modal': {
+		type: 'boolean',
+		values: ['true', 'false']
+	},
 	'aria-multiline': {
 		type: 'boolean',
 		values: ['true', 'false']
@@ -99,6 +106,9 @@ lookupTables.attributes = {
 	'aria-owns': {
 		type: 'idrefs'
 	},
+	'aria-placeholder': {
+		type: 'string'
+	},
 	'aria-posinset': {
 		type: 'int'
 	},
@@ -155,7 +165,7 @@ lookupTables.attributes = {
 lookupTables.globalAttributes = [
 	'aria-atomic', 'aria-busy', 'aria-controls', 'aria-current', 'aria-describedby',
 	'aria-disabled', 'aria-dropeffect', 'aria-flowto', 'aria-grabbed',
-	'aria-haspopup', 'aria-hidden', 'aria-invalid', 'aria-label',
+	'aria-haspopup', 'aria-hidden', 'aria-invalid', 'aria-keyshortcuts', 'aria-label',
 	'aria-labelledby', 'aria-live', 'aria-owns', 'aria-relevant'
 ];
 
@@ -172,7 +182,7 @@ lookupTables.role = {
 	'alertdialog': {
 		type: 'widget',
 		attributes: {
-			allowed: ['aria-expanded']
+			allowed: ['aria-expanded', 'aria-modal']
 		},
 		owned: null,
 		nameFrom: ['author'],
@@ -240,7 +250,8 @@ lookupTables.role = {
 	'columnheader': {
 		type: 'structure',
 		attributes: {
-			allowed: ['aria-expanded', 'aria-sort', 'aria-readonly', 'aria-selected', 'aria-required']
+			allowed: ['aria-colindex', 'aria-colspan', 'aria-expanded', 'aria-rowindex', 'aria-rowspan', 
+				'aria-required', 'aria-readonly', 'aria-selected', 'aria-sort']
 		},
 		owned: null,
 		nameFrom: ['author', 'contents'],
@@ -294,12 +305,12 @@ lookupTables.role = {
 		owned: null,
 		nameFrom: ['author'],
 		context: null,
-		implicit: ['dd']
+		implicit: ['dd', 'dfn']
 	},
 	'dialog': {
 		type: 'widget',
 		attributes: {
-			allowed: ['aria-expanded']
+			allowed: ['aria-expanded', 'aria-modal']
 		},
 		owned: null,
 		nameFrom: ['author'],
@@ -325,6 +336,17 @@ lookupTables.role = {
 		context: null,
 		implicit: ['body']
 	},
+	'feed': {
+		type: 'structure',
+		attributes: {
+			allowed: ['aria-expanded']
+		},
+		owned: { 
+			one: ['article']
+		},
+		nameFrom: ['author'],
+		context: null
+	},
 	'form': {
 		type: 'landmark',
 		attributes: {
@@ -350,7 +372,8 @@ lookupTables.role = {
 	'gridcell': {
 		type: 'widget',
 		attributes: {
-			allowed: ['aria-selected', 'aria-readonly', 'aria-expanded', 'aria-required']
+			allowed: ['aria-colindex', 'aria-colspan', 'aria-expanded', 'aria-rowindex', 
+				'aria-rowspan', 'aria-selected', 'aria-readonly', 'aria-required']
 		},
 		owned: null,
 		nameFrom: ['author', 'contents'],
@@ -620,7 +643,7 @@ lookupTables.role = {
 	'row': {
 		type: 'structure',
 		attributes: {
-			allowed: ['aria-level', 'aria-selected', 'aria-activedescendant', 'aria-expanded']
+			allowed: ['aria-activedescendant', 'aria-colcount', 'aria-expanded', 'aria-level', 'aria-selected', 'aria-rowcount']
 		},
 		owned: {
 			one: ['cell', 'columnheader', 'rowheader', 'gridcell']
@@ -644,7 +667,8 @@ lookupTables.role = {
 	'rowheader': {
 		type: 'structure',
 		attributes: {
-			allowed: ['aria-sort', 'aria-required', 'aria-readonly', 'aria-expanded', 'aria-selected']
+			allowed: ['aria-colindex', 'aria-colspan', 'aria-expanded', 'aria-rowindex', 'aria-rowspan', 
+				'aria-required', 'aria-readonly', 'aria-selected', 'aria-sort']
 		},
 		owned: null,
 		nameFrom: ['author', 'contents'],
@@ -673,7 +697,7 @@ lookupTables.role = {
 	'searchbox': {
 		type: 'widget',
 		attributes: {
-			allowed: ['aria-activedescendant', 'aria-autocomplete', 'aria-multiline', 'aria-readonly', 'aria-required']
+			allowed: ['aria-activedescendant', 'aria-autocomplete', 'aria-multiline', 'aria-readonly', 'aria-required', 'aria-placeholder']
 		},
 		owned: null,
 		nameFrom: ['author'],
@@ -787,6 +811,16 @@ lookupTables.role = {
 		nameFrom: ['author'],
 		context: null
 	},
+	'term': {
+		type: 'structure',
+		attributes: {
+			allowed: ['aria-expanded']
+		},
+		owned: null,
+		nameFrom: ['author', 'contents'],
+		context: null,
+		implicit: ['dt']
+	},
 	'text': {
 		type: 'structure',
 		owned: null,
@@ -796,7 +830,7 @@ lookupTables.role = {
 	'textbox': {
 		type: 'widget',
 		attributes: {
-			allowed: ['aria-activedescendant', 'aria-autocomplete', 'aria-multiline', 'aria-readonly', 'aria-required']
+			allowed: ['aria-activedescendant', 'aria-autocomplete', 'aria-multiline', 'aria-readonly', 'aria-required', 'aria-placeholder']
 		},
 		owned: null,
 		nameFrom: ['author'],
@@ -847,8 +881,8 @@ lookupTables.role = {
 	'treegrid': {
 		type: 'composite',
 		attributes: {
-			allowed: ['aria-activedescendant', 'aria-expanded', 'aria-level', 'aria-multiselectable',
-				'aria-readonly', 'aria-required']
+			allowed: ['aria-activedescendant', 'aria-colcount', 'aria-expanded', 'aria-level', 'aria-multiselectable',
+				'aria-readonly', 'aria-required', 'aria-rowcount']
 		},
 		owned: {
 			all: ['treeitem']