jealousy
US /ˈdʒel.ə.si/
UK /ˈdʒel.ə.si/

1.
a feeling of envy toward someone's achievements or possessions
:
•
Her success sparked jealousy among her colleagues.
•
He felt a pang of jealousy when he saw his friend's new car.
2.
a feeling of protective possessiveness toward someone or something
:
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His jealousy over his girlfriend's friendships was unhealthy.
•
The dog showed jealousy when another pet got attention.