1 one side

2 either side

3 on the one hand

4 on the other hand

5 doing while

1 magnificent army with thousands of men and horses (idiom); impressive display of manpower

2 all the King's horses and all the King's men

1 right side

2 right, to the right

1 periphery

2 rim

3 surroundings

4 all around

5 perimeter

6 peripheral (computing)

7 spin-offs

1 lateral

2 side

3 to the side

4 beside

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

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

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

1 not care about one's appearance (idiom)

2 slovenly in dress and manner

1 lit. to be struck by an arrow and fall from one's horse

2 to suffer a serious setback (idiom)