
ausbessern
to patch up
To repair small damage, cracks, or holes in something in order to make it usable or presentable again.
Ich muss noch das Loch in meiner Jeans ausbessern.
I still have to patch up the hole in my jeans.
to patch up / repair
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to patch up
To repair small damage, cracks, or holes in something in order to make it usable or presentable again.
Ich muss noch das Loch in meiner Jeans ausbessern.
I still have to patch up the hole in my jeans.
'Ausbessern' (to patch up / repair) is a separable verb. In a main clause, the prefix 'aus' goes at the end of the sentence.
Der Maler bessert die Risse in der Wand aus.
The painter patches up the cracks in the wall.
The word is made up of 'aus' and 'bessern' (to improve/make better). It describes the action of fixing a mistake or damage in order to improve the condition again.
Kannst du bitte die Tippfehler im Dokument ausbessern?
Could you please correct the typos in the document?
'Ausbessern' (to patch up / repair) is used for small repairs. Typical objects are 'Löcher' (holes) in clothing or roads, 'Risse' (cracks) in walls, 'Schäden' (damage) to furniture, or also 'Fehler' (errors/mistakes) in a text.
Die Stadt lässt die Schlaglöcher auf der Hauptstraße ausbessern.
The city is having the potholes on the main road patched up.
to improve
A damaged object can be improved or patched up. Verbessern refers generally to its condition or quality, while ausbessern specifically repairs typical small kinds of damage such as cracks or holes. For a general improvement in quality, use „verbessern“; for a localized repair, use „ausbessern“.

Wir bessern den alten Stuhl aus, indem wir den Riss im Sitz reparieren.
We patch up the old chair by repairing the crack in the seat.
Wir verbessern den alten Stuhl, indem wir ihn stabiler und bequemer machen.
We improve the old chair by making it sturdier and more comfortable.