verwandeln
to transform
To fundamentally change something or someone so that it takes on a completely new form, shape, or quality.
Die Hexe hat den Prinzen in einen Frosch verwandelt.
The witch transformed the prince into a frog.

to transform
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to transform
To fundamentally change something or someone so that it takes on a completely new form, shape, or quality.
Die Hexe hat den Prinzen in einen Frosch verwandelt.
The witch transformed the prince into a frog.

When something is transformed into something else, the preposition 'in' is used followed by the accusative. This applies both to the transitive and to the reflexive form of the verb.
Der Magier verwandelte die Karte in eine Taube.
The magician transformed the card into a dove.
A distinction is made between 'etwas verwandeln' (to transform something; transitive) and 'sich verwandeln' (to transform oneself; reflexive). In the first case, the subject changes an object. In the second case, the subject changes itself.
Die Künstlerin verwandelt Müll in Kunst.
The artist transforms trash into art.
'Verwandeln' (to transform) is an inseparable verb with the prefix 'ver-'. The base verb 'wandeln' means 'to move about' or 'to change', and the prefix 'ver-' here strengthens the idea of a complete change.
Die Renovierung hat das alte Haus komplett verwandelt.
The renovation completely transformed the old house.
In sports language, 'verwandeln' means to successfully use a scoring chance. This usually refers to set-piece situations such as a penalty kick, penalty shot, or free throw.
Der Spieler hat den entscheidenden Freistoß direkt verwandelt.
The player converted the decisive free kick directly.
to meet / to hit
'treffen' and 'verwandeln' can both have to do with a successful shot in sports. 'treffen' generally means that a ball, throw, or shot reaches a target, for example the goal or the target. 'verwandeln' is used for specific chances in sports, especially a penalty kick or penalty shot, when it results in a goal or point. The words can be confused because both sound successful. Memory tip: You hit a target, but you convert a penalty kick.

Die Spielerin verwandelt den Elfmeter in der letzten Minute.
The player converts the penalty kick in the final minute.
Beim Training trifft Max aus großer Entfernung das Tor.
During training, Max hits the goal from a long way away.