hold up, holdup, holed up

Hold up or hold up ( two words ) means to support or raise--
Do you think these brackets will hold up that shelf?
Hold up this poster while I tape it to the wall.
Hold up your hand if you agree.
Hold up the newspaper so it will show in the picture.
Hold up also means to present or offer to the notice of--
We can't hold up a superhero as a role model for the children.
Hold up also means to endure, to remain sound--
Do you think this cart will hold up under the load?

Hold up or hold up ( two words ) may also mean to stop, hinder, or delay or something--
This breakdown will hold up our deliveries.
The snow will hold up traffic until the roads are cleared.
Hold up also means to rob at gunpoint--
The outlaw was shot while trying to hold up a train.

Holdup or holdup ( one word ) means a snag or delay--
What's the holdup?
Holdup or holdup ( one word ) means a robbery at gunpoint--
The news carried the story of the bank holdup.

Holed up or holed up describes a person in hiding--
He was holed up in a cheap motel on the outskirts of town, where no one could find him.
They have been holed up in their apartment for days, but the reporters are still waiting outside.

Now that you know that, you can say--
"The police had to hold up traffic to surround the fugitive, who had been holed up in a little farmhouse since the bank holdup."