6.67 USAGE NOTE

Some prepositions have several meanings. For example, 'on' can be used to indicate that someone or something is resting on a horizontal surface or is attached to something, or that someone's place of work is an area such as a farm or a building site.

• The phone was on the floor in the hallway.
• I lowered myself into the ravine on a rope tied to the trunk of a tree.
• My father worked on a farm.