The noun "jealousy" can be both countable and uncountable.
Meaning: unhappiness felt when you think someone you like wants somebody else, or when someone else has something you want
Example sentence: Michael had trouble hiding the jealousy he felt when he heard about his brother's success in business.
Meaning: an action or comment that shows jealousy
Example sentence: Jenny said she was sick of all her boyfriend's petty jealousies, and was going to leave him.
Test your understanding:
- People who've been cheated on in the past are more likely to experience jealousy.
- Her many jealousies resulted from her fear of being cheated on.