This is the 1299th most frequent German word.
legen
"Legen" means "to lay" or "to put" something in a horizontal position.
Refers to the physical act of placing an object on a location.
Ich lege das Buch auf den Tisch.
I place the book on the table.
Refers to the reflexive use where it means to recline oneself in a resting position.
Bitte legen Sie sich hin, wenn Sie müde sind.
Please lie down if you are tired.
Used in a figurative sense to mean explaining or making something clear.