一切

1. Origins, structure, and basic meaning

• Structure: 一切 is a nominal and adverbial expression read いっさい; with a negative it means not any or not at all, while in an affirmative clause it can mean all without exception.
• Basic usage: It can extend a prohibition to every item or state that one side will bear all required costs.
  • 展示品には一切触れないでください。 asks visitors not to touch any exhibit; 手続きに必要な費用は一切こちらが負担する。 states that this side will cover all costs required for the procedure.

2. Common pitfalls and similar expressions

• 一切触れない
  • With the negative form, 一切 means that none of the exhibits may be touched at all.
• 費用は一切負担する
  • In the affirmative clause, it means bearing every required cost without exception.
• 一切 and 全く
  • 一切 focuses on the entire set or absence of exceptions, while 全く often emphasizes a complete state or degree.