馬

surname Ma / abbr. for Malaysia 馬來西亞|马来西亚[Ma3 lai2 xi1 ya4]

horse / CL:匹[pi3] / horse or cavalry piece in Chinese chess / knight in Western chess

Amazon

to dismount from a horse / (fig.) to abandon (a project)

to get on a horse / to mount

display of severity immediately on taking office / (fig.) initial show of strength

to take the lead

Alabama, US state

Mt Kilimanjaro in Tanzania

Alabama, US state

to suffer a crushing defeat (idiom) / in a pitiful state / in a complete mess / to roll (with laughter)

flat land one could gallop straight across (idiom); wide expanse of flat country

Amazon

Amazon River

lit. people shouting and horses neighing (idiom) / fig. tumultuous / hubbub

lit. once said, a team of horses cannot unsay it (idiom); a promise must be kept

one ladle (of sth bad) spoils the (whole) pot (idiom) / one bad apple spoils the barrel

three horses at the same trough (idiom, alluding to Sima Yi 司馬懿|司马懿[Si1 ma3 Yi4] and his two sons); conspirators under the same roof

troika

lit. to be struck by an arrow and fall from one's horse / to suffer a serious setback (idiom)

to jaywalk

Amazon River