diff --git a/package.json b/package.json
index f88e42e..930fe1b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "muffinbot",
-  "version": "4.0.0-pudding.experimental_slash_test.4",
+  "version": "4.0.0-pudding.experimental_slash_test.5",
   "main": "dist/index.js",
   "private": true,
   "dependencies": {
diff --git a/src/Client.ts b/src/Client.ts
index 562966b..074b4a8 100644
--- a/src/Client.ts
+++ b/src/Client.ts
@@ -22,7 +22,7 @@ container.version = version
 container.database = new PrismaClient()
 container.dokdoAliases = ['dokdo', 'dok', 'Dokdo', 'Dok', '테스트']
 container.chatBot = new ChatBot(container.database)
-container.lastUpdated = new Date('2024-09-29')
+container.lastUpdated = new Date('2024-10-01')
 
 if (release.startsWith('e')) {
   container.channel = 'EXPERIMENTAL'
diff --git a/src/Commands/learn.ts b/src/Commands/learn.ts
index 1f0879d..2e2bc69 100644
--- a/src/Commands/learn.ts
+++ b/src/Commands/learn.ts
@@ -1,5 +1,5 @@
+import { ChatInputCommandInteraction, codeBlock, Message } from 'discord.js'
 import { type Args, Command, container } from '@sapphire/framework'
-import { codeBlock, type Message } from 'discord.js'
 import { ApplyOptions } from '@sapphire/decorators'
 
 @ApplyOptions<Command.Options>({
@@ -16,32 +16,69 @@ import { ApplyOptions } from '@sapphire/decorators'
   },
 })
 class LearnCommand extends Command {
-  public async messageRun(msg: Message, args: Args) {
-    if (typeof this.detailedDescription === 'string') return
-    const config = this.container.config
-    const command = (await args.pick('string').catch(() => null))?.replaceAll(
-      '_',
-      ' ',
-    )
-    const result = (await args.pick('string').catch(() => null))?.replaceAll(
-      '_',
-      ' ',
-    )
-    if (!command || !result) {
-      return await msg.reply(
-        codeBlock(
-          'md',
-          `사용법: ${this.detailedDescription}
-          예시: ${this.detailedDescription.examples?.map(example => example).join('\n')}`,
+  public registerApplicationCommands(registry: Command.Registry) {
+    registry.registerChatInputCommand(builder =>
+      builder
+        .setName(this.name)
+        .setDescription(this.description)
+        .addStringOption(option =>
+          option
+            .setRequired(true)
+            .setName('단어')
+            .setDescription('등록할 단어를 입력해주세요.'),
+        )
+        .addStringOption(option =>
+          option
+            .setRequired(true)
+            .setName('대답')
+            .setDescription('해당 단어의 대답을 입력해주세요.'),
         ),
+    )
+  }
+
+  private async _run(ctx: Message | ChatInputCommandInteraction, args?: Args) {
+    if (ctx instanceof ChatInputCommandInteraction) ctx.deferReply()
+    if (typeof this.detailedDescription === 'string') return
+
+    const config = this.container.config
+    const IG_MSG = '해ㄷ당 단어는 배울ㄹ 수 없어요.'
+    const DI_MSG = '해당 단ㅇ어는 개발자님이 특별히 금지하였ㅇ어요.'
+    const SUCCESS_MSG = '을/를 배웠ㅇ어요.'
+
+    let command: string
+    let result: string
+
+    if (ctx instanceof Message) {
+      command = (await args!.pick('string').catch(() => null))!.replaceAll(
+        '_',
+        ' ',
       )
+      result = (await args!.pick('string').catch(() => null))!.replaceAll(
+        '_',
+        ' ',
+      )
+
+      if (!command || !result)
+        return await ctx.reply(
+          codeBlock(
+            'md',
+            `사용법: ${this.detailedDescription}
+            예시: ${this.detailedDescription.examples?.map(example => example).join('\n')}`,
+          ),
+        )
+    } else {
+      command = ctx.options.getString('단어', true)
+      result = ctx.options.getString('대답', true)
     }
+
     const commands: string[] = []
     const aliases: string[] = []
+
     this.container.stores.get('commands').forEach(module => {
       commands.push(module.name)
       module.aliases.forEach(alias => aliases.push(alias))
     })
+
     const ignore = [
       ...commands,
       ...aliases,
@@ -52,27 +89,41 @@ class LearnCommand extends Command {
       '간미',
     ]
     const disallowed = ['@everyone', '@here', `<@${config.bot.owner_ID}>`]
+    const user = ctx instanceof Message ? ctx.author : ctx.user
 
     for (const ig of ignore) {
-      if (command.includes(ig)) {
-        return msg.reply('해ㄷ당 단어는 배울ㄹ 수 없어요.')
-      }
+      if (command.includes(ig))
+        return ctx instanceof Message
+          ? await ctx.reply(IG_MSG)
+          : await ctx.editReply(IG_MSG)
     }
 
     for (const di of disallowed) {
-      if (result.includes(di)) {
-        return msg.reply('해당 단ㅇ어는 개발자님이 특별히 금지하였ㅇ어요.')
-      }
+      if (result.includes(di))
+        return ctx instanceof Message
+          ? await ctx.reply(DI_MSG)
+          : await ctx.editReply(DI_MSG)
     }
 
     await this.container.database.learn.create({
       data: {
-        user_id: msg.author.id,
+        user_id: user.id,
         command,
         result,
       },
     })
-    await msg.reply(`${command}을/를 배웠ㅇ어요.`)
+
+    return ctx instanceof Message
+      ? await ctx.reply(command + SUCCESS_MSG)
+      : await ctx.editReply(command + SUCCESS_MSG)
+  }
+
+  public async messageRun(msg: Message, args: Args) {
+    await this._run(msg, args)
+  }
+
+  public async chatInputRun(interaction: ChatInputCommandInteraction) {
+    await this._run(interaction)
   }
 }