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
Loading your saved state.
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
'verbessern' and 'ausbessern' can both mean that something is in a better condition afterward. 'verbessern' is general and can refer to many things, for example skills, quality, or a situation. 'ausbessern' is used much more narrowly: it is about repairing small damage, cracks, or holes. Learners may confuse the words because when you 'ausbessern' something, it can also look better or work better. But 'ausbessern' only fits when something is physically damaged.

Der Handwerker bessert das Loch in der Wand aus.
The handyman is patching up the hole in the wall.
Meine Nachbarin verbessert ihre Deutschkenntnisse mit einem Abendkurs.
My neighbor is improving her German skills with an evening course.