南北

1. Origins, structure, and basic meaning

• Structure: In 南北 (なんぼく), south 南 and north 北 are paired to denote the two directions or regions.
• Basic usage: 南北に can mark a north-south axis or direction, while 南北では can establish the two regions as a contrastive scope.

2. Common pitfalls and similar expressions

• Axis and regional contrast
  • Context shows whether the word lists directions or refers to regional groups.