noun
plural horses
[count] :a large animal that is used for riding and for carrying and pulling things
[count] a frame used to support a piece of wood while it is being cut with a saw :sawhorse
a large piece of equipment used in gymnastics :pommel horse
horses [plural] informal
a US :horsepower
b the horses :horse races
[count] US informal :an athlete who is strong and who helps a team to win - usually plural
a horse of a different color
chiefly US informal :a very different thing or issue
beat a dead horse
chiefly US or flog a dead horse
informal
to keep talking about a subject that has already been discussed or decided
to waste time and effort trying to do something that is impossible
change horses in midstream
to choose a different leader or policy during a time when serious problems are being dealt with
eat a horse
informal
Someone who is very hungry can be described as being hungry enough to eat a horse.
from the horse's mouth
informal of information :from the original source or person and therefore thought to be true
hold your horses
informal - used to tell someone to slow down, stop, or wait for a short time
look a gift horse in the mouth
to look in a critical way at something that has been given to you
put the cart before the horse
the wrong horse
If you choose/pick/back (etc.) the wrong horse, you choose or support someone or something that is not successful.
verb
horses; horsed; horsing
horse around
or Brit horse about
[phrasal verb] informal :to play in a rough or loud way :to engage in horseplay