Idioms are steady combinations of words which it is impossible to translate literally as their meaning is lost. For this purpose it is necessary to know their exact value.
Idioms add colour to the language, giving us lively and interesting ways of expressing ourselves. We use them in a wide variety of situations, from friendly conversations and business meetings to more formal written contexts. Longman Pocket Idioms Dictionary
от горшка два вершка
pot
1¾ inches
to be knee-high to the grasshopper
точка – point (math); spot; dot; a full stop угол – angle (math); corner круг – circle (math) шар – sphere (math); spherical object; ball