verb
to increase, to raise, to heighten
B1
Erhöhen means 'to increase', 'to raise' or 'to heighten', often used transitively and taking a direct object. Regular weak verb with participle 'erhöht'. Uses auxiliary haben for perfect tenses. Not separable or reflexive, no stem changes; common in passive (wird erhöht).
Examples
Die Firma plant, die Preise im nächsten Jahr zu erhöhen.
The company plans to increase the prices next year.
Die Firma erhöhte die Preise.
The company raised its prices.
Die Temperatur hat sich erhöht.
The temperature has increased.
Details
Mnemonics
Picture a slider being moved up with a big + sign labeled 'erhöhen'.
Sounds like 'error-hane' — imagine fixing an error by increasing a value.
Notes
erhöhen is an inseparable-prefix verb (prefix er-). It is a regular (weak) verb and uses 'haben' as auxiliary in perfect tenses. It is often used transitively (erhöhen etwas).