plural of race
"The track was designed to accommodate six horses racing at once, but today they were running in two separate heats representing different breeds."
Third-person singular simple present indicative form of race
"The horses races down the track at full speed."
In plain English: To race means to move as fast as you can, usually competing against someone else.
"The children raced to catch the bus before it left."
plural of Race
"The ancient civilization was home to many distinct races, each with its own unique traditions and languages."