馬

1. Origins, structure, and basic meaning

• Structure: 馬 (うま) is a single-character noun read うま for a horse.
• Basic usage: It refers to the grazing animal and to the mount a traveler rides over a mountain path.

2. Common pitfalls and similar expressions

• The animal rather than its equipment
  • In 馬に乗る, the horse serves as a mount, but the noun does not include the saddle, carriage, or rider.