The one-horse shay is a light, covered two-wheeled carriage for two persons, drawn by a single horse. It is the American adaptation, originating in Union, Maine of the French chaise, and is also known as a whisky as its owners tended to whisk about doing errands. The body is chairlike in shape and has one seat for passengers positioned above the axle, which is hung by leather braces from wooden springs connected to the shafts. Alternative spellings are one-hoss shay and "one horse shay".
a crowded field of candidates
Fred Thompson announced his long-expected bid for the presidency. The former Republican senator faces a crowded field of candidates.
group noun [S]
all the competitors taking part in a race or activity:
The race started with a field of eleven, but two horses fell.
We have a strong field this afternoon.
Once again, Jones finished ahead of the field.
to have or produce a team of people to take part in an activity or event:
The company fielded a group of experts to take part in the conference.
Robert Mugabe will win his “election”, but he is under pressure to quit
Wikipedia article "One-horse shay".
━━ n. 2輪［4輪］軽装馬車.