From Longman Dictionary of Contemporary Englishoutriderout‧rid‧er /ˈaʊtˌraɪdə $ -ər/ noun [countable] TTPROTECTa guard or police officer who rides on a motorcycle or horse beside or in front of a vehicle in which an important person is travelling
Examples from the Corpus
outrider• The scouts and outriders were part of a growing band which had started to acknowledge the unofficial leadership of Suragai.• A convoy of cars stretching for miles was escorted by Merseyside Police outriders.• When the fleet put sail outriders from the Empire followed its progress along the coast.• The main hills were in the south, where Saxony included the outriders of the Hartz mountains.• Along the edge of the plain the outriders that Burun had planted were galloping back to join the main body.• The outriders were almost on her.• An arvee and ten or twelve outriders.• Goblin wolf riders raid and pillage far afield, while outriders scour the surrounding countryside for any sign of enemy armies. 