低空

1. Origins, structure, and basic meaning

• Structure: In 低空 (ていくう), low 低 and sky 空 combine to denote low altitude.
• Basic usage: 低空で marks an action occurring at low altitude, while 低空飛行 forms the expression low-altitude flight.

2. Common pitfalls and similar expressions

• Low altitude and compound use
  • The word itself says nothing about low speed.