Final answer:
The term 'group' is used loosely because there is no precise legal definition. Other terms like 'obscenity,' 'sex,' and 'family' also have fluid definitions that vary based on legal, social, and cultural contexts. Language evolves with society, and terms are often redefined to better encompass diverse experiences.
Step-by-step explanation:
The term 'group' is often used loosely because there is no specific legal definition. It is a versatile term that can represent anything from a small family unit to a large assembly of people. Similarly, the term 'obscenity' lacks a clear legal definition and varies based on community standards, which can differ vastly from one place to another. Moreover, words like 'sex' and 'family' also demonstrate fluid definitions, which can shift based on legal, social, and cultural contexts as evidenced in the Supreme Court's interpretation of 'sex' in the Civil Rights Act and sociologists' broader acceptance of what constitutes a 'family'.
The use of certain terms evolves over time, and what was once widely accepted can change to include broader meanings or become unacceptable, as observed with the evolving language surrounding LGBTQ identities. Language continues to reflect societal changes, and as such, terms regarding identity, legality, and social constructs are often debated and redefined to include a wider range of experiences and realities.