増やす

1. Origins, structure, and basic meaning

• Structure: 増やす is read as ふやす and is a godan transitive verb meaning to make a quantity, variety, or degree greater.
• Basic usage: The thing increased takes を, as in ページ数を増やす and 花の種類を増やす.

2. Common pitfalls and similar expressions

• Contrast with 増える
  • 増やす is transitive and presents someone increasing something; 増える is intransitive and presents the quantity itself increasing.
• Amount and variety
  • It can increase the total number of items or add kinds so that the range becomes broader.