diff --git a/lesson_3/code/game.py b/lesson_3/code/game.py
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diff --git a/lesson_4/code/db.py b/lesson_4/code/db.py
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+++ b/lesson_4/code/db.py
@@ -0,0 +1,2 @@
+DICT_DEFENITION_WORD = {'инкапсуляция': 'сокрытие реализации',
+                         'полиморфизм': 'изменение поведение при наследовании'  }
\ No newline at end of file
diff --git a/lesson_4/code/yakubovich.py b/lesson_4/code/yakubovich.py
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diff --git a/lesson_4/manual/lection_5.pdf b/lesson_4/manual/lection_5.pdf
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