To change direction and go or drive back in the opposite direction from the one you came from.
example
Wir haben die Hälfte des Weges geschafft, bevor wir wegen des schlechten Wetters umkehren mussten.
We had made it halfway before we had to turn back because of the bad weather.
Usage tips
Separable verb
'Umkehren' (to turn back / turn inside out) is a separable verb. In a main clause, the prefix 'um' goes at the end. In a subordinate clause, the verb stays together, and in the infinitive with 'zu', 'zu' goes in the middle.
EXAMPLE
Wegen des Staus kehrten wir um.
Because of the traffic jam, we turned back.
Auxiliary verb sein/haben
The auxiliary verb depends on the meaning. When 'umkehren' describes movement or a figurative change of direction, the perfect tense is formed with 'sein'. When it means 'to turn something inside out', 'haben' is used.
EXAMPLE
Wir sind nach einer Stunde wieder umgekehrt.
We turned back again after an hour.
Context clue
Whether 'umkehren' is transitive or intransitive indicates the meaning. If the verb has an accusative object, e.g. 'die Jacke' (the jacket), 'die Socken' (the socks), it means 'to turn inside out'. Without an object, it means 'to change direction' or 'to change oneself'.
EXAMPLE
Kannst du bitte deine Hose umkehren?
Can you please turn your pants inside out?
Compare with
near_synonym · confusable
umkehren vs wenden
to turn / contact
'wenden' and 'umkehren' can both mean that you change your direction of movement and go or drive back. 'wenden' tends to emphasize the concrete turn or maneuver, for example with a car. 'umkehren' puts more emphasis on the decision to stop following the previous route and go back. That is why 'umkehren' also sounds good for hikes or journeys. Learners may confuse the words because both describe movement in the opposite direction. When the turning of the vehicle is important, 'wenden' fits. When the return as a decision is important, 'umkehren' fits.
umkehren
Wegen des starken Schnees kehren die Wanderer nach einer Stunde um.
Because of the heavy snow, the hikers turn back after an hour.
wenden
Du darfst mit dem Auto erst hinter der Kreuzung wenden.
You may only turn the car around after the intersection.