20-25, 20-30, 20's, 20s, 25-30, 4, 40-45, 40-50, 40's, 40s, 45-50, 50-55, 50-60, 55-60, accessory, acknowledging, adult, advancement, apparatus, apparel, arranging, assembly, associate, builder, building, business, business man, businesspeople, calling, challenging, clothes, clothing, collaborating, colleague, color, colour, communicating, computer, concentrating, conference, connecting, connexion, constructing, cooperation, daylight, daytime, defending, demanding, displaying, draft, drawing, earth, evaluating, examining, executive, exhibiting, exterior, eyeing, fellow, female, fifties, fifty, forties, forty, four, gal, garment, gathering, gentleman, ground, group, guy, hard hat, hat, hearing, helmet, human, human being, joining, lady, listener, looking, luminous-vest, machine, male, mid life, middle age, middle aged, middle-age, middle-aged, negative space, operating, organizing, outdoor, outside, pc, person, personal computer, portable computer, portable radio, reader, responding, safeguard, safety vest, safety-hat, safety-vest, security, seeing, seriousness, soil, solemn, somber, stone, team, telephoning, three-quarter length, toiling, twenties, twenty, waist-up, white space, wireless, women, work, worker, world wide web,
