A network in sociology refers to a set of informal and formal social ties that connects individuals, groups, or organisations to each other, forming a web of relationships through which information, resources, and social support can flow. These networks can vary in size, density, and complexity, ranging from small, close-knit groups to large, loosely connected global networks facilitated by technology. Social networks play a crucial role in various aspects of social life, influencing everything from job opportunities and social mobility to the spread of ideas and social support systems. The strength and nature of these ties (e.g., strong vs. weak ties) can have different implications for the individuals involved and the functioning of the network as a whole. Sociologists study social networks to understand social capital, social influence, and the structure of social relationships at different levels of analysis.