Ключевые слова: abstract, app, arrow, attach, background, button, chain, clip, communication, concept, connection, cooperation, design, element, flat, graphic, hyperlink, icon, illustration, image, interface, internet, isolated, joined, label, link, link icon, link symbol, linked, menu, metal, network, object, protection, safety, security, separation, share, sign, single, strength, symbol, system, technological, technology, togetherness, web, website,