diff --git a/src/greek_lang/glossaries/models.py b/src/greek_lang/glossaries/models.py
index d19b4a0..1bd7a4d 100644
--- a/src/greek_lang/glossaries/models.py
+++ b/src/greek_lang/glossaries/models.py
@@ -11,7 +11,8 @@ from ..database.base import Base
 from ..languages import LanguageEnum
 
 
-class LexicalCategoryEnum(str, enum.Enum):
+@enum.unique
+class LexicalCategoryEnum(enum.StrEnum):
     noun = "noun"
     verb = "verb"
     adjective = "adjective"
diff --git a/src/greek_lang/languages.py b/src/greek_lang/languages.py
index 51a44fe..857b651 100644
--- a/src/greek_lang/languages.py
+++ b/src/greek_lang/languages.py
@@ -2,7 +2,7 @@ import enum
 
 
 @enum.unique
-class LanguageEnum(str, enum.Enum):
+class LanguageEnum(enum.StrEnum):
     ru = "ru"
     en = "en"
     el = "el"
diff --git a/src/greek_lang/srs/models.py b/src/greek_lang/srs/models.py
index 7057a69..f4d49ff 100644
--- a/src/greek_lang/srs/models.py
+++ b/src/greek_lang/srs/models.py
@@ -16,6 +16,7 @@ from sqlalchemy.orm import Mapped, mapped_column
 from greek_lang.database.base import Base
 
 
+@enum.unique
 class ReviewState(enum.StrEnum):
     learning = "learning"
     review = "review"
diff --git a/src/greek_lang/tg_bot/dialogs/__init__.py b/src/greek_lang/tg_bot/dialogs/__init__.py
index c0dd330..914dbae 100644
--- a/src/greek_lang/tg_bot/dialogs/__init__.py
+++ b/src/greek_lang/tg_bot/dialogs/__init__.py
@@ -1,8 +1,11 @@
 from aiogram_dialog import Dialog
 
 from .main_menu import windows as main_windows
+from .add_word import windows as add_word_windows
 
 
 dialog = Dialog(
     main_windows.main_window,
+    add_word_windows.add_word_window,
+    add_word_windows.add_word_result_window,
 )
diff --git a/src/greek_lang/tg_bot/dialogs/add_word/__init__.py b/src/greek_lang/tg_bot/dialogs/add_word/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/greek_lang/tg_bot/dialogs/add_word/handlers.py b/src/greek_lang/tg_bot/dialogs/add_word/handlers.py
new file mode 100644
index 0000000..703f084
--- /dev/null
+++ b/src/greek_lang/tg_bot/dialogs/add_word/handlers.py
@@ -0,0 +1,65 @@
+from aiogram.types import Message, CallbackQuery, BufferedInputFile
+from aiogram_dialog import DialogManager
+from aiogram_dialog.widgets.input import MessageInput
+from aiogram_dialog.widgets.kbd import Button
+from greek_lang.languages import LanguageEnum
+from greek_lang.translator import translate
+from ..states import States
+
+
+async def add_word(
+    message: Message,
+    source: MessageInput | Button,
+    manager: DialogManager,
+) -> None:
+    if not message.text:
+        return
+    word = message.text.strip()
+    if not word:
+        return
+    source_lang = LanguageEnum.ru
+    target_lang = LanguageEnum.el
+    glossary_word = await translate(word, source_lang, target_lang=target_lang)
+
+    # Try to send audio pronunciation back to the user
+    try:
+        audio_bytes = getattr(glossary_word, "audio_file", None)
+        if audio_bytes:
+            # aiogTTS produces MP3 data; send as audio
+            caption = (
+                f"<b>{glossary_word.term}</b> → <b>{glossary_word.translation}</b>"
+            )
+            input_file = BufferedInputFile(
+                audio_bytes, filename=f"{glossary_word.term}.mp3"
+            )
+            await message.answer_audio(
+                audio=input_file, caption=caption, parse_mode="HTML"
+            )
+    except Exception:
+        # Silently ignore audio sending issues to not break the flow
+        pass
+
+    # Store data for the result window
+    manager.dialog_data.update(
+        {
+            "term": glossary_word.term,
+            "translation": glossary_word.translation,
+            "transcription": glossary_word.transcription or "",
+            "lexical_category": getattr(glossary_word, "lexical_category", ""),
+            "description": glossary_word.description or "",
+            "example": glossary_word.example or "",
+            "note": glossary_word.note or "",
+        }
+    )
+
+    # Switch to the result window state
+    await manager.switch_to(States.add_word_result)
+
+
+async def on_add_another(
+    callback: CallbackQuery,
+    button: Button,
+    manager: DialogManager,
+) -> None:
+    await callback.answer()
+    await manager.switch_to(States.add_word)
diff --git a/src/greek_lang/tg_bot/dialogs/add_word/windows.py b/src/greek_lang/tg_bot/dialogs/add_word/windows.py
new file mode 100644
index 0000000..441fe37
--- /dev/null
+++ b/src/greek_lang/tg_bot/dialogs/add_word/windows.py
@@ -0,0 +1,73 @@
+from typing import Any
+
+from aiogram.enums import ParseMode
+from aiogram_dialog import DialogManager, Window
+from aiogram_dialog.widgets.input import MessageInput
+from aiogram_dialog.widgets.kbd import Button, Row
+from aiogram_dialog.widgets.markup.reply_keyboard import ReplyKeyboardFactory
+from aiogram_dialog.widgets.text import Format, Const
+
+from ..states import States
+from ..base_handlers import cancel_handler
+from . import handlers
+
+
+async def add_word_window_getter(
+    dialog_manager: DialogManager, **kwargs: Any
+) -> dict[str, Any]:
+    return {}
+
+
+add_word_window = Window(
+    Const("<b>Введите слово</b>:"),
+    MessageInput(func=handlers.add_word),
+    Row(
+        Button(
+            Format("❌ Отмена"),
+            on_click=cancel_handler,  # type: ignore[arg-type]
+            id="cancel_add_word",
+        ),
+    ),
+    markup_factory=ReplyKeyboardFactory(
+        input_field_placeholder=Format("Слово..."),
+        resize_keyboard=True,
+        one_time_keyboard=True,
+    ),
+    state=States.add_word,
+    parse_mode=ParseMode.HTML,
+    getter=add_word_window_getter,
+)
+
+
+async def add_word_result_getter(
+    dialog_manager: DialogManager, **kwargs: Any
+) -> dict[str, Any]:
+    # Expose dialog_data fields directly for Format widgets
+    return dialog_manager.dialog_data
+
+
+add_word_result_window = Window(
+    Format(
+        "✅ <b>Слово добавлено</b>!\n\n"
+        "<b>{term}</b> → <b>{translation}</b>\n"
+        "{transcription}\n"
+        "<b>Часть речи</b>: {lexical_category!s}\n"
+        "<b>Описание</b>: {description}\n"
+        "<b>Пример</b>: {example}"
+    ),
+    Row(
+        Button(
+            Const("➕ Добавить ещё"),
+            id="add_another",
+            on_click=handlers.on_add_another,
+        ),
+        Button(
+            Const("🏠 В меню"),
+            on_click=cancel_handler,  # type: ignore[arg-type]
+            id="to_main_menu",
+        ),
+    ),
+    state=States.add_word_result,
+    parse_mode=ParseMode.HTML,
+    getter=add_word_result_getter,
+)
diff --git a/src/greek_lang/tg_bot/dialogs/base_handlers.py b/src/greek_lang/tg_bot/dialogs/base_handlers.py
new file mode 100644
index 0000000..b153988
--- /dev/null
+++ b/src/greek_lang/tg_bot/dialogs/base_handlers.py
@@ -0,0 +1,16 @@
+from aiogram_dialog import DialogManager, ShowMode
+from aiogram_dialog.api.internal import ReplyCallbackQuery
+from aiogram_dialog.widgets.kbd import Cancel
+
+from .states import States
+
+
+async def cancel_handler(
+    callback_query: ReplyCallbackQuery,
+    button: Cancel,
+    manager: DialogManager,
+) -> None:
+    await manager.switch_to(
+        States.main_menu,
+        show_mode=ShowMode.DELETE_AND_SEND,
+    )
diff --git a/src/greek_lang/tg_bot/dialogs/main_menu/handlers.py b/src/greek_lang/tg_bot/dialogs/main_menu/handlers.py
index e69de29..8c91b5d 100644
--- a/src/greek_lang/tg_bot/dialogs/main_menu/handlers.py
+++ b/src/greek_lang/tg_bot/dialogs/main_menu/handlers.py
@@ -0,0 +1,26 @@
+from aiogram.types import CallbackQuery
+from aiogram_dialog import DialogManager, ShowMode
+from aiogram_dialog.api.internal import ReplyCallbackQuery
+from aiogram_dialog.widgets.kbd import Cancel, Button
+
+from ..states import States
+
+
+async def on_add_word(
+    callback: CallbackQuery,
+    button: Button,
+    manager: DialogManager,
+) -> None:
+    await callback.answer()
+    await manager.switch_to(States.add_word)
+
+
+async def cancel_handler(
+    callback_query: ReplyCallbackQuery,
+    button: Cancel,
+    manager: DialogManager,
+) -> None:
+    await manager.switch_to(
+        States.add_word,
+        show_mode=ShowMode.DELETE_AND_SEND,
+    )
diff --git a/src/greek_lang/tg_bot/dialogs/main_menu/windows.py b/src/greek_lang/tg_bot/dialogs/main_menu/windows.py
index 1520c79..7a88633 100644
--- a/src/greek_lang/tg_bot/dialogs/main_menu/windows.py
+++ b/src/greek_lang/tg_bot/dialogs/main_menu/windows.py
@@ -2,9 +2,11 @@ from typing import Any
 
 from aiogram.enums import ParseMode
 from aiogram_dialog import DialogManager, Window
-from aiogram_dialog.widgets.text import Format
+from aiogram_dialog.widgets.kbd import Row, Button
+from aiogram_dialog.widgets.text import Format, Const
 
 from ..states import States
+from . import handlers
 
 
 async def main_getter(dialog_manager: DialogManager, **kwargs: Any) -> dict[str, Any]:
@@ -13,10 +15,17 @@ async def main_getter(dialog_manager: DialogManager, **kwargs: Any) -> dict[str,
 
 main_window = Window(
     Format(
-        "Выбери действие:",
+        "<b>Выбери действие</b>:",
         when=lambda data, widget, dialog_manager: data["dialog_data"].get("action")
         is None,
     ),
+    Row(
+        Button(
+            Const("Добавить слово"),
+            id="add_word",
+            on_click=handlers.on_add_word,
+        ),
+    ),
     state=States.main_menu,
     getter=main_getter,
     parse_mode=ParseMode.HTML,
diff --git a/src/greek_lang/tg_bot/dialogs/states.py b/src/greek_lang/tg_bot/dialogs/states.py
index 6914ee5..9f74921 100644
--- a/src/greek_lang/tg_bot/dialogs/states.py
+++ b/src/greek_lang/tg_bot/dialogs/states.py
@@ -3,3 +3,5 @@ from aiogram.fsm.state import State, StatesGroup
 
 class States(StatesGroup):
     main_menu = State()
+    add_word = State()
+    add_word_result = State()