diff --git a/pluralize/pluralize-tests.ts b/pluralize/pluralize-tests.ts
new file mode 100644
index 0000000000..07d5a3dccf
--- /dev/null
+++ b/pluralize/pluralize-tests.ts
@@ -0,0 +1,25 @@
+/// <reference path="pluralize.d.ts" />
+
+import pluralize = require('pluralize');
+
+pluralize('test'); //=> "tests"
+pluralize('test', 1); //=> "test"
+pluralize('test', 5); //=> "tests"
+pluralize('test', 1, true); //=> "1 test"
+pluralize('test', 5, true); //=> "5 tests"
+
+pluralize.plural('regex'); //=> "regexes"
+pluralize.addPluralRule(/gex$/i, 'gexii');
+pluralize.plural('regex'); //=> "regexii"
+
+pluralize.singular('singles'); //=> "single"
+pluralize.addSingularRule(/singles$/i, 'singular');
+pluralize.singular('singles'); //=> "singular"
+
+pluralize.plural('irregular'); //=> "irregulars"
+pluralize.addIrregularRule('irregular', 'regular');
+pluralize.plural('irregular'); //=> "regular"
+
+pluralize.plural('paper'); //=> "papers"
+pluralize.addUncountableRule('paper');
+pluralize.plural('paper'); //=> "paper"
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diff --git a/pluralize/pluralize.d.ts b/pluralize/pluralize.d.ts
new file mode 100644
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+++ b/pluralize/pluralize.d.ts
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+// Type definitions for pluralize
+// Project: https://www.npmjs.com/package/pluralize
+// Definitions by: Syu Kato <https://github.com/ukyo>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+interface PluralizeStatic {
+    /**
+     * Pluralize or singularize a word based on the passed in count.
+     *
+     * @param word
+     * @param count
+     * @param inclusive
+     */
+    (word: string, count?: number, inclusive?: boolean): string;
+
+    /**
+     * Pluralize a word based.
+     *
+     * @param word
+     */
+    plural(word: string): string;
+
+    /**
+     * Singularize a word based.
+     *
+     * @param word
+     */
+    singular(word: string): string;
+
+    /**
+     * Add a pluralization rule to the collection.
+     *
+     * @param rule
+     * @param replacement
+     */
+    addPluralRule(rule: string|RegExp, replacemant: string): void;
+
+    /**
+     * Add a singularization rule to the collection.
+     *
+     * @param rule
+     * @param replacement
+     */
+    addSingularRule(rule: string|RegExp, replacemant: string): void;
+
+    /**
+     * Add an irregular word definition.
+     *
+     * @param single
+     * @param plural
+     */
+    addIrregularRule(single: string, plural: string): void;
+
+    /**
+     * Add an uncountable word rule.
+     *
+     * @param word
+     */
+    addUncountableRule(word: string|RegExp): void;
+}
+
+declare module "pluralize" {
+    export = pluralize;
+}
+declare var pluralize: PluralizeStatic;
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