This is the 17769th most frequent Russian word.
улучшению
"Улучшению" means "to improvement" or "for improvement" in English, depending on context.
Here, "улучшению" is used in its dative case form, indicating the purpose or direction of the action, aligned with the preposition "на."
Программа направлена на улучшению условий работы.
The program is aimed at improving working conditions.
In this sentence, "улучшению" again is in its dative case form, reflecting the indirect object of the verb "способствует," denoting what the improvement applies to.
Посвящение времени этому делу способствует улучшению навыков.
Dedicating time to this task helps to improve skills.
Here, "улучшению" is used with the preposition "к," indicating the aspirational direction towards improvement.