強まる

1. Origins, structure, and basic meaning

• Structure: The written form is 強まる, read つよまる. This intransitive verb describes force or degree becoming stronger than before.
• Basic usage: 雨脚が強まった describes rain intensifying in the past, while 関心が強まる describes interest growing as more is heard.

2. Common pitfalls and similar expressions

• Rain gradually intensifying
  • The intensity of the rain gradually increases during the afternoon. Example: 午後から雨脚が次第に強まった。 — The rain gradually intensified in the afternoon.
• Interest growing with information
  • Interest in the plan grows in proportion to what the speaker hears. Example: 話を聞くほど計画への関心が強まる。 — My interest in the plan grows stronger the more I hear about it.