2, 20-25, 20-30, 20's, 20s, 25-30, 40-45, 40-50, 40's, 40s, 45-50, 50-55, 50-60, 55-60, accessory, adult, advancement, apparatus, apparel, arranging, assembly, associate, builder, building, business, business man, businesspeople, challenging, cheerful, clothes, clothing, collaborating, colleague, color, colour, communicating, conference, connecting, connexion, constructing, cooperation, daylight, daytime, defending, delighted, demanding, draft, drawing, earth, enjoying, excavation, executive, exterior, fellow, fifties, fifty, forties, forty, garment, gathering, gentleman, glad, gratifying, ground, group, guy, happy, hard hat, hat, helmet, human, human being, joining, jolly, joy, laughter, lighthearted, low angle, luminous-vest, machine, male, merry, mid life, middle age, middle aged, middle-age, middle-aged, motioning, negative space, organizing, outdoor, outside, person, pleasing, pleasure, portable radio, safeguard, safety vest, safety-hat, safety-vest, satisfaction, security, signaling, smile, soil, stone, team, toiling, transit, transport, transporting, twenties, twenty, two, waist-up, white space, wireless, work, worker,
