2, 20-25, 20-30, 20's, 20s, 25-30, 30-35, 30-40, 30's, 30s, 35-40, accessory, adult, advancement, apparatus, apparel, arranging, assembly, associate, challenging, clip board, clip-board, clothes, clothing, collaborating, colleague, color, colour, conference, construction, cooperation, curious, daylight, daytime, defending, demanding, displaying, draft, drawing, earth, exhibiting, exterior, fellow, full body, full-length, garment, gathering, gentleman, ground, group, guy, hard hat, hat, helmet, human, human being, interest, low angle, luminous-vest, machine, male, negative space, organizing, outdoor, outside, person, reader, safeguard, safety vest, safety-hat, safety-vest, security, soil, stone, team, thirties, thirty, toiling, torch, transit, transport, transporting, twenties, twenty, two, vehicle, white space, wireless, work,
