diff --git a/src/routes/user/user.controller.js b/src/routes/user/user.controller.js
index f86eaa4..4e22ff7 100755
--- a/src/routes/user/user.controller.js
+++ b/src/routes/user/user.controller.js
@@ -3,6 +3,7 @@ const jwt = require('jsonwebtoken');
 const config = require('../../common/config');
 
 const userService = require('./user.service');
+const wordService = require('../word/word.service');
 const sendResponse = require('../../common/utils/response-handler');
 const ErrorMessage = require('../../common/constants/error-message');
 const SuccessMessage = require('../../common/constants/success-message');
@@ -319,6 +320,7 @@ exports.updateRequestState = async (req, res) => {
 exports.deleteUser = async (req, res) => {
     try {
         const { _id } = req.user;
+        await wordService.deleteWordContributor(_id);
         await userService.deleteUser(_id);
         sendResponse.ok(res, {
             message: SuccessMessage.DELETE_USER_SUCCESS,
diff --git a/src/routes/word/word.repository.js b/src/routes/word/word.repository.js
index c5cb8dd..eecfc5d 100644
--- a/src/routes/word/word.repository.js
+++ b/src/routes/word/word.repository.js
@@ -73,7 +73,7 @@ exports.getAllWords = async (isSorted, page, limit) => {
 
 exports.addWord = async (requestId, formData) => {
     try {
-        // requestId에 해당하는 request를 찾습니다.        
+        // requestId에 해당하는 request를 찾습니다.
         const user = await User.findOne({ 'requests._id': requestId });
         if (!user) {
             console.log('User with the given request not found');
@@ -141,14 +141,31 @@ exports.updateWord = async (requestId, formData) => {
     }
 };
 
+exports.deleteWordContributor = async (_id) => {
+    // _id가 일치하는 유저의 닉네임 값을 가져오고, 해당 유저가 suggestedBy로 있는 모든 단어의 suggestedBy를 null로 변경
+    try {
+        const user = await User.findById(_id);
+
+        if (!user) {
+            console.log('User not found');
+            return null;
+        }
+        const nickname = user.nickname;
+
+        const words = await Word.updateMany({ suggestedBy: nickname }, { suggestedBy: null });
+        return words;
+    } catch (error) {
+        console.log('Error while deleting word contributor:', error);
+        return null;
+    }
+};
 exports.checkDuplicateWord = async (word) => {
     try {
         const wordExists = await Word.findOne({ word: { $regex: new RegExp(`^${word}$`, 'i') } });
         console.log('wordExists:', wordExists);
         return wordExists;
-    }
-    catch (error) {
+    } catch (error) {
         console.log('Error while checking duplicate word:', error);
         return null;
     }
-}
\ No newline at end of file
+};
diff --git a/src/routes/word/word.service.js b/src/routes/word/word.service.js
index c4d10e3..bd48baa 100644
--- a/src/routes/word/word.service.js
+++ b/src/routes/word/word.service.js
@@ -24,9 +24,13 @@ exports.getAllWords = async (sort, page, limit) => {
     return words;
 };
 
+exports.deleteWordContributor = async (_id) => {
+    return await wordRepository.deleteWordContributor(_id);
+};
+
 // 등록 단어 중복 검사
 exports.checkDuplicateWord = async (word) => {
     const isDuplicate = await wordRepository.checkDuplicateWord(word);
-    console.log("isDuplicate: ", isDuplicate)
+    console.log('isDuplicate: ', isDuplicate);
     return isDuplicate;
 };