傾く

1. Origins, structure, and basic meaning

• Structure: 傾く, read かたむく, is an intransitive verb meaning to tilt or to decline in prosperity.
• Basic usage: It is used for both a sloping floor and a family business that is gradually declining.
  • 古い家の床が少し傾いている。

2. Common pitfalls and similar expressions

• Agency compared with 傾ける
  • 傾く describes something tilting, while the transitive 傾ける describes someone tilting an object.