
halbieren
to halve
To divide or cut something into two roughly equal parts.
Kannst du den Apfel für uns halbieren?
Can you halve the apple for us?
to halve
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to halve
To divide or cut something into two roughly equal parts.
Kannst du den Apfel für uns halbieren?
Can you halve the apple for us?

to halve
In a figurative sense, to reduce the amount, value, or number of something by half.
Durch die Krise hat sich der Wert der Aktien halbiert.
Because of the crisis, the value of the shares halved.
The verb 'halbieren' (to halve) is derived directly from the adjective 'halb' (half). The ending '-ieren' turns the adjective into a verb meaning 'to make something half'.
Wenn wir die Kosten halbieren, kann jeder mitkommen.
If we halve the costs, everyone can come along.
The literal meaning refers to physically dividing objects such as food. The figurative meaning refers to reducing abstract things such as numbers, values, or amounts.
Bitte halbiere die Zwiebel, bevor du sie in die Pfanne gibst.
Please halve the onion before you put it in the pan.
In the figurative meaning, 'halbieren' (to halve) is often used reflexively to express that a value has reduced by half on its own. The structure is then 'sich halbieren' (to be halved / to halve).
Die Zahl der Anmeldungen hat sich im Vergleich zum Vorjahr halbiert.
The number of registrations has halved compared with the previous year.
to share / divide
Teilen leaves open how many parts are created and whether they are the same size. Halbieren more precisely means dividing something into two roughly equal parts. Teilen works as a general description; halbieren works when the number and size of the parts matter.

Sie halbiert den Kuchen.
She halves the cake.
Sie teilt den Kuchen in zwei annähernd gleiche Stücke.
She divides the cake into two roughly equal pieces.