To discreetly is to do something in a way that keeps the person or thing you're hiding from detection. You might discreetly hide the evidence when you're trying to prove that someone is guilty.
The detective discreetly took the evidence to the lab to be analyzed.
The teacher discreetly handed out the assignments to the students.
ADV
with discretion; prudently and with wise self-restraint
1
The pilot discreetly watches this from a distance.
2
In London Mackintosh discreetly monitors the progress of Rearden.
3
She discreetly ushers them into the city morgue.
4
He is then discreetly compensated for his efforts by the husbands.
5
I am attempting to address the issue discreetly.
6
I normally find an excuse to discreetly exit the room.
7
Discreetly Mine won the Risen Star Stakes in February.
8
Kagura follows and allows the Inuyasha and the gang to discreetly trail her.
9
In later stories, if the date was asked or revealed, it was done so discreetly.
10
Hours later, Kate awakens and discreetly leaves while the man is asleep.