to run away
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to run away
To leave a place or person suddenly or secretly, often out of fear, dissatisfaction, or in order to escape.
Der Hund ist gestern weggelaufen, als die Gartentür offen stand.
The dog ran away yesterday when the garden gate was open.
'Weglaufen' (to run away) is a separable verb. In a main clause, the prefix 'weg' comes at the end, but in a subordinate clause it remains attached to the verb.
Der Junge lief sofort weg, als er den großen Hund sah.
The boy ran away immediately when he saw the big dog.
Since 'weglaufen' (to run away) describes movement, the perfect tense is always formed with the auxiliary verb 'sein' (to be), not with 'haben' (to have).
Meine Katze ist schon wieder weggelaufen.
My cat has run away yet again.
In the figurative meaning, 'weglaufen' (to run away) is always used with the preposition 'vor' and the dative. You run away 'vor' (from) a problem, a task, or a responsibility.
Er versucht, vor seiner Verantwortung wegzulaufen.
He is trying to run away from his responsibility.
to stay / remain
'bleiben' and 'weglaufen' are opposites when it comes to a place or a person. 'bleiben' means that you stay there and do not leave. 'weglaufen' means that you leave quickly or secretly, often out of fear, anger, or because you want to escape a situation. 'weglaufen' sounds stronger and more emotional than simply 'weggehen' (to leave / go away). If someone calmly stays in a place, 'bleiben' fits; if someone flees or suddenly disappears, 'weglaufen' fits.
Der Junge ist weggelaufen, weil er Angst vor dem großen Hund hatte.
The boy ran away because he was afraid of the big dog.
Nach dem Unterricht bleibt sie noch kurz im Klassenraum.
After class, she stays in the classroom for a little while.