対岸

1. Origins, structure, and basic meaning

• Structure: In 対岸 (たいがん), 対 marks opposition and 岸 a bank, together denoting the opposite bank.
• Basic usage: 対岸に marks a location or destination on the opposite bank, while 対岸へ emphasizes movement in that direction.

2. Common pitfalls and similar expressions

• Location and direction
  • The reference point is the bank across the water from the speaker's side.