also: おうま · おすうま
male horse; stallion
Refers specifically to a male horse. In horse racing contexts, often contrasted with 牝馬 (ひんば, female horse).
That male horse is very fast.
I watched a race between male and female horses at the racetrack.
breeding stallion; stud horse; stud
Standard kanji spelling for 'male horse', using the character 牡 (male animal).
Alternate kanji spelling using 雄 (male). Less common than 牡馬.
Kana spelling for the reading おうま. Used when the kanji is avoided or for clarity.
Kana spelling for the reading おすうま. Rarely used; 牡馬 or おうま are preferred.
Compound of 牡 (male animal) and 馬 (horse). The reading ぼば is the on'yomi of the characters, while おうま and おすうま are kun'yomi-based readings.