応援

1. Origins, structure, and basic meaning

• Structure: 応援 is read おうえん and means encouraging someone or lending support.
• Basic usage: It is used for cheering on a player in a game or supporting someone's efforts.

2. Common pitfalls and similar expressions

• Recipient and means
  • In 弟を応援する, を marks the person supported.
  • 応援 may include encouragement and help, not only loud cheering.
• Support and success
  • 応援する describes support, not a guarantee that the person wins or succeeds.