一句

1. Origins, structure, and basic meaning

• Structure: 一句 is read as いっく and is an expression for one line or passage of verse or for one haiku.
• Basic usage: Copying a memorable line appears in 心に残った一句を書き写す, while composing a haiku about an autumn evening appears in 秋の夕暮れを一句に詠む.

2. Common pitfalls and similar expressions

• Scope determined by context
  • 一句を書き写す refers to copying a memorable line or passage, while 一句に詠む refers to expressing something as a haiku.