0 to protect something very carefully because it is important to you: --
1 in a way that shows you are jealous (= unhappy and angry) because of something someone has got: --
She had been jealously stalking Sam in this hopeless clumsy way.
The driver jealously glanced my way as I popped open an ice-cold beer.
We do not look jealously upon the success of other cities; we use them as a benchmark.
The principle of grand jury independence is firmly rooted and jealously protected in our federal system of justice.
"We jealously guard our reputation and make every effort to get things right," he said.
For years the company has jealously guarded its trade secrets.