I have a few questions regarding the meaning of the verb phrases propped up on/ propped against.
Oxford Dictionary gives the following sentences to illustrate the usage of the verb prop.
- The old man lay propped up on cushions.
- He lay propped against the pillows.
I take the predicates of the two sentences to mean the same thing: They both lay (on their beds, most likely,) their heads somewhat raised at an angle, cushions/the pillows supporting them. Or is there any difference between the two?
- She propped herself up on one elbow.
In this one, the woman being described was lying on her side (on her bed or on the floor, you cannot know,) head resting on her hand, arm bent at the elbow. Or could the sentence be interpreted in different ways? (She was sitting at her desk staring out the window, maybe?)