accustomed

1. Origins, structure, and basic meaning

• Structure: 慣 has 14 strokes, the on-reading かん, and the kun-readings なれる and ならす. 慣れる (なれる) means to become accustomed.
• Basic usage: 慣れる describes becoming familiar with surroundings or an object; 習慣 (しゅうかん) means a repeated habit or a local custom.

2. Common pitfalls and similar expressions

• Becoming accustomed and repeated habits
  • 道具に慣れる means to get used to a tool, with に marking what one becomes accustomed to. 学校の生活にすぐ慣れた means quickly became accustomed to school life.
  • 毎朝散歩することが祖父の習慣です means that walking every morning is the grandfather's habit. 春の訪れを火祭りで祝う習慣 refers to a local custom of celebrating spring's arrival with a fire festival.