激増

1. Origins, structure, and basic meaning

• Structure: 激増(げきぞう) means a sharp, substantial increase in quantity.
• Basic usage: It describes a marked rise in quantities such as inquiries or orders.
  • 問い合わせが激増した means that inquiries surged.

2. Common pitfalls and similar expressions

• Increase and emphasis
  • 増加(ぞうか) neutrally denotes an increase; 激増 emphasizes the large extent of the change.
• The opposite direction
  • 激減(げきげん) describes a sharp decrease in quantity.