席

1. Origins, structure, and basic meaning

• Structure: 席 is read せき and means a place where someone sits or is assigned to sit.
• Basic usage: It is used for a seat near a window or a numbered seat at a performance.

2. Common pitfalls and similar expressions

• Place and furniture
  • 椅子 is a chair as furniture; 席 is the place occupied by or assigned to someone. A seat number identifies the place rather than the type of furniture.
• に for the seat
  • In 席に座る, に marks where someone sits.