嫉妒用英语可以说成 "jealousy"。

来源：

该单词来源于拉丁语，原先的词根是"zeal"，意思是"热忱"。在中世纪，该词又从拉丁语中引入了古法语，并由古法语发展成了现在的英语。

例句：

She felt a pang of jealousy when she saw him talking to another girl.

(当她看到他和另一个女孩说话时，她感到了一阵嫉妒。)

His jealousy was palpable when he saw his ex-girlfriend with another man.

(他看到前女友和另一个男人在一起时，他的嫉妒感显而易见。)

Despite his jealousy, he tried to hide his feelings and act normally.

(尽管嫉妒，他还是努力隐藏情绪，表现得很正常。)