自炊

1. Origins, structure, and basic meaning

• Structure: 自炊(じすい) means preparing meals for oneself.
• Basic usage: It appears when discussing cooking to reduce living costs or enjoying the preparation of one's own meals.

2. Common pitfalls and similar expressions

• The aspect of life compared with 一人暮らし
  • 一人暮らし(ひとりぐらし) describes living alone. 自炊 describes how meals are prepared, so the second example separately expresses beginning to live alone and cooking for oneself.