insert

1. Origins, structure, and basic meaning

• Structure: 挿 has 10 strokes, the on-reading そう, and the kun-reading さす. 挿す (さす) and 挿入 (そうにゅう) mean placing or inserting something.
• Basic usage: 挿す is used for placing flowers or ornaments; 挿入 describes inserting an illustration into text or a card into a device.

2. Common pitfalls and similar expressions

• The quantity placed and the location of insertion
  • 白い花を一輪挿した means placed one white flower. 髪に小さな飾りを挿して describes having a small ornament placed in one's hair.
  • 説明文の途中に locates the illustration partway through the instructions. カードを挿入口に挿入すると states the condition that inserting the card into the slot makes instructions appear on the screen.