on

Where the picture shows up

• The keys are on the table.the picture itselftouching and resting on a surface. This is the picture itself: one thing held up by a surface.
• She put on her coat.the picture itselfwearing something on the body. The clothes touch your body and stay there, like a cup on a table.
• He hung the picture on the wall.the picture itselffixed to any surface, even a side one. The surface can be a wall or a ceiling. Contact is the key.
• Turn on the light.picture, stretchedworking, switched into action. Old switches pressed parts into contact, so power flowed. This link is weak.
• Go on, keep talking.picture, stretchedcontinuing without stopping. You stay in contact with the path or task and keep moving along it.
• It depends on the weather.picture, stretchedsupported or decided by something. The weather holds up the plan, like a table holds up a cup.
• She wrote a book on history.picture, stretchedabout a topic. The words rest on the topic as their base.
• Drinks are on me tonight.idiomI will pay. The cost is put on me like a weight. Mostly fixed phrase.