- A small flag or streamer, as that carried by cavalry,
which is broad at one end and nearly pointed at the other, or that used
to direct the movements of a body of infantry, or to make signals at
sea; also, the flag of a guild or fraternity. In the United States
service, each company of cavalry has a guidon. - One who carries a flag. - One of a community established at Rome, by Charlemagne,
to guide pilgrims to the Holy Land.