vt. If you abandon an activity or piece of work, you stop doing it before it is finished.

  • The plan was abandoned when it was discovered just how much the scheme would cost.

stop drop halt

vt. If you abandon a place, thing, or person, you leave the place, thing, or person permanently or for a long time, especially when you should not do so. 

  • He claimed that his parents had abandoned him. 

desert leave strand ditch

vt. If you abandon an idea or way of thinking, you stop having that idea or thinking in that way. 

  • Logic had prevailed and he had abandoned the idea. 

n. If you say that someone does something with abandon, you mean that they behave in a wild, uncontrolled way and do not think or care about how they should behave. 

  • He approached life with reckless abandon. I don’t think he himself knew what he was going to do next.