Hold on = to wait for a short while e.g. Hold on – Let me get my keys.
Hold on = a confused/surprised expression e.g. Hold on! Didn’t you tell me you weren’t interested?
Hold onto something = to keep something you have e.g. You should hold onto your grandfather’s watch. It is valuable.
Hold out something = to hold something in front of you e.g. She held out her plate and asked for more potatoes.
Hold out for something = to wait until you get what you want e.g. She’s holding out for a wealthy man.
Hold out on someone = to not give information to someone e.g. I asked him about it but I think he’s holding out on me.
Hold someone to something = to make someone do what they have agreed to do e.g. I’m going to hold him to his word and collect what he owes me next week.
Hold up = to support e.g. Those two columns hold up the building
Hold up something = to delay e.g. The competition was held up because the team arrived late.
Hold up = to steal money from a building/person/vehicle e.g. There was a hold up at our local bank last week.
Hold someone/something up as something = to use as a good example e.g. She is often held up as a role model because of her charity work.