Quick definitions from WordNet (pony)
▸ noun: a range horse of the western United States
▸ noun: any of various breeds of small gentle horses usually less than five feet high at the shoulder
▸ noun: an informal term for a racehorse
▸ noun: a literal translation used in studying a foreign language (often used illicitly)
▸ noun: a small glass adequate to hold a single swallow of whiskey
▸ Also see pony
▸ noun: a range horse of the western United States
▸ noun: any of various breeds of small gentle horses usually less than five feet high at the shoulder
▸ noun: an informal term for a racehorse
▸ noun: a literal translation used in studying a foreign language (often used illicitly)
▸ noun: a small glass adequate to hold a single swallow of whiskey
▸ Also see pony