各社

1. Origins, structure, and basic meaning

• Structure: 各社 is read かくしゃ and is a noun that refers to each of several companies.
• Basic usage: It is used when several companies are considered under the same criterion, such as in product comparisons or event participation.

2. Common pitfalls and similar expressions

• Singular and plural reference
  • It does not refer to just one company; it points to the companies in context individually or collectively.