Ключевые слова: air, alarm, art, castle, celebration, clock, color, colorful, communication, contour, day, design, engagement, female, heart, hour, icon, illustration, insurance, isolated, keyhole, line, linear, linked, lock, love, male, marriage, message, minute, mobile, note, outline, phone, pop, popart, ring, set, smartphone, sound, stopwatch, symbol, telephone, tone, valentine, women,