This is the 351st most frequent Turkish word.
katkı
Contribution.
Here, 'katkı' refers to the individual's input towards a project or endeavor.
Bu projeye senin katkıların çok değerli.
Your contributions to this project are very valuable.
In this context, 'katkı' means the aid or effect of the medicine on health improvement.
Bu ilaç sağlığınızı korumaya katkı sağlar.
This medicine contributes to protecting your health.
Here, 'katkı' describes the involvement or participation of society in a collective effort.