types:
baker
someone who bakes commercially
grocer
a retail merchant who sells foodstuffs (and some household supplies)
art dealer
a dealer in works of art requiring esthetic evaluation
barterer
a trader who exchanges goods and not money
chandler
a seller of provisions and supplies, especially for ships
cleaner,
dry cleaner
a person who works at a shop that specializes in washing fabric without water
draper
a dealer in fabrics and sewing materials (and sometimes in clothing and drygoods)
fence
a dealer in stolen property
florist
someone who grows and deals in flowers
greengrocer
a grocer who sells fresh fruits and vegetables
hosier
a tradesman who sells hosiery and (in England) knitwear
licensee
someone to whom a license is granted
mercer
a dealer in textiles (especially silks)
stamp dealer
a dealer in stamps (whose customers are stamp collectors)
tobacconist
a retail dealer in tobacco and tobacco-related articles
dealer
a seller of illicit goods
underseller
a seller that sells at a lower price than others do