Learn Turkish: Bu kavram proje için çok önemli. - This concept is very important for the project.

The noun kavram is derived from the verb kavramak, which means to grasp or to comprehend. By adding the -m suffix, it turns the mental action of grasping an idea into the abstract noun concept.

Is the word önem (importance) in önemli also derived using this suffix?

While it looks similar, önem is actually formed from the noun root ön (front), not a verb. The adjective önemli (important) is then formed by adding the -li (with/having) suffix to önem, carrying the literal idea of having priority or frontness.

Why is there no to be suffix like -dir at the end of the sentence (önemlidir)?

In everyday spoken and standard written Turkish, the third-person copula (is/are) is usually omitted in simple descriptive sentences. Adding -dir to make it önemlidir would make the sentence sound much more formal, like an objective fact in an academic text rather than a conversational statement.

Why does proje not take any case endings before the postposition için?