diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..da59d59
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,18 @@
+declare type WordsOptions = {
+  min?: number;
+  max?: number;
+  exactly?: number;
+  maxLength?: number;
+  wordsPerString?: number;
+  seperator?: string;
+  formatter?: (word: string, index: number) => string;
+};
+
+declare type JoinedWordsOptions = WordsOptions & { join: string; };
+
+declare function words(count: number): string[];
+declare function words(options: WordsOptions): string[];
+declare function words(options: JoinedWordsOptions): string;
+
+export const wordsList: string[];
+export default words;