Lassen vs. verlassen
While both the German verbs lassen and verlassen can be translated as to leave in English, they have distinct meanings and are not interchangeable. The key difference lies in whether one is leaving something *behind* (lassen) or departing *from* a place or person (verlassen).
Lassen
A2The verb lassen means to leave in the sense of to leave something behind, to not take something with you, or to let something be in a certain state. It focuses on the object or person that remains.
Ich habe meine Schlüssel auf dem Tisch gelassen.
(I left my keys on the table.)
Bitte lassen Sie die Fenster offen.
(Please leave the windows open.)
Er hat mir nur ein kleines Stück Pizza gelassen.
(He only left me a small piece of pizza.)
Kannst du den Hund für eine Stunde allein lassen?
(Can you leave the dog alone for an hour?)
Lass das, es ist zu gefährlich.
(Leave that alone, it is too dangerous.)
Verlassen
A2The verb verlassen means to leave in the sense of to depart from a location or to abandon a person or group. It describes the action of exiting a place or ending a significant relationship.
Wir müssen das Haus um 9 Uhr verlassen.
(We have to leave the house at 9 o'clock.)
Der letzte Gast hat die Party um Mitternacht verlassen.
(The last guest left the party at midnight.)
Sie hat ihren Mann nach einem langen Streit verlassen.
(She left her husband after a long argument.)
Die Vögel verlassen im Herbst das Land.
(The birds leave the country in the autumn.)
Er hat die Firma verlassen, um ein neues Unternehmen zu gründen.
(He left the company to start a new business.)
Summary
In summary, use lassen when you are leaving an object or person behind (not taking them with you). Use verlassen when you are actively departing from a specific place (a house, city, country) or abandoning a person (ending a relationship). A good rule of thumb: lassen focuses on what stays, while verlassen focuses on who goes.