To work together with one or more people or organizations in order to achieve a common goal.
example
Die beiden Unternehmen kooperieren bei der Entwicklung einer neuen Software.
The two companies are cooperating on the development of new software.
Usage tips
Word structure
The verb is made up of the Latin prefix 'ko-' (together) and the word stem of 'operieren' (to act, work). So it literally means 'to work together.'
EXAMPLE
Die beiden Abteilungen müssen lernen, besser zu kooperieren.
The two departments must learn to cooperate better.
Correct preposition
When you want to name the partner in the cooperation, you always use the preposition 'mit' followed by the dative. The question is: Mit wem kooperieren sie? (With whom are they cooperating?)
EXAMPLE
Unsere Firma kooperiert mit einer Universität in den USA.
Our company cooperates with a university in the USA.
Word family
The related noun is 'die Kooperation' (cooperation). It describes the act or result of working together and is often used in formal contexts.
EXAMPLE
Die Kooperation zwischen den beiden Firmen war sehr erfolgreich.
The cooperation between the two companies was very successful.
Compare with
near_synonym · confusable
kooperieren vs unterstützen
to support
'unterstützen' and 'kooperieren' can both mean that people or groups are not acting alone. The difference lies in the relationship: with 'unterstützen', one side helps the other, for example with money, time, work, or approval. With 'kooperieren', several sides work together and usually have a shared goal. Learners may confuse the words because both sound positive and collaborative. As a practical rule: if someone is receiving help, 'unterstützen' often fits. If both sides are actively working together, 'kooperieren' is better.
kooperieren
Die beiden Firmen kooperieren bei einem neuen Projekt.
The two companies are cooperating on a new project.
unterstützen
Im Büro hat Tom seine Kollegin bei der Vorbereitung unterstützt.
At the office, Tom supported his colleague with the preparation.