This is the 16288th most frequent Russian word.
ревности
Jealousy.
Here, 'ревность' represents the feeling of jealousy due to personal relationships.
Она стала чувствовать ревность к новым коллегам своего мужа.
She started feeling jealousy towards her husband's new colleagues.
In this sentence, 'ревность' is used to describe the emotion of envy or motivation to excel triggered by competitors.
Его ревность к конкурентам подталкивает его к достижениям.
His jealousy towards competitors drives him towards achievements.
Here, 'ревность' refers to the general concept of jealousy within interpersonal dynamics.