to invest
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to invest in
To put resources such as money, time, or effort into something in the hope of future profit, benefit, or success.
Sie hat viel Zeit in ihre Ausbildung investiert, um einen guten Job zu finden.
She invested a lot of time in her education in order to find a good job.
to invest
In a formal or historical context: to formally install someone in a high office.
Der Bischof wurde im Dom feierlich in sein Amt investiert.
The bishop was solemnly invested in his office in the cathedral.
Verbs ending in '-ieren' are almost always regular. They form the past participle with '-t' (investiert) and the simple past with '-te' (investierte).
Er hat sein ganzes Erspartes in die neue Firma investiert.
He invested all his savings in the new company.
The verb 'investieren' (to invest) is almost always used with the preposition 'in' followed by an accusative object. You invest in something.
Es lohnt sich, in eine gute Ausbildung zu investieren.
It is worth investing in a good education.
You can invest not only 'Geld' (money), but also abstract resources. Common combinations are 'Zeit investieren' (to invest time), 'Energie investieren' (to invest energy), or 'viel Mühe investieren' (to invest a lot of effort).
Ich habe viel Energie in dieses Projekt investiert und hoffe, dass es erfolgreich wird.
I invested a lot of energy in this project and hope that it will be successful.
The meaning 'jemanden in ein Amt einsetzen' (to install someone in an office) is very formal and rare. It is mainly used in historical or very official, ceremonial contexts.
Der König wurde feierlich in sein Amt investiert.
The king was solemnly invested in his office.
to insert / to begin / to use
Both verbs can mean using money, time, or effort for a purpose. Investieren usually points to a hoped-for later benefit or success and is used with in, while einsetzen emphasizes immediate use for a task. Use investieren when a future effect is expected, and einsetzen for direct support.
Das Unternehmen investiert viel Zeit in die Entwicklung eines neuen Produkts.
The company is investing a great deal of time in developing a new product.
Der Verein setzt viel Zeit für die Betreuung der Kinder ein.
The association spends a great deal of time looking after the children.
