For extreme like the sporting events that came out in the 90's .
there is a k pop group called girls generation that is all girls, but I have never heard of generation g.
"a generation WAS" Generation is an identifier that turns a group into one singular noun.
Love Generation - group - was created in 2010.
Not everyone is a member of a named generation. People born in 1942 would be said to be "born during World War 2" but are called by a group name as are the "Baby Boom Generation" or the "Lost Generation."
Girls Generation's sub-group is Taetiseo (TTS)
A clan
Individuals who are caring for both their parents and their children are often referred to as the "sandwich generation."
Heartaches & Heartbreaks
it is called a cohort
The consumers that were born between 1965 and 1978 are called Generation X/ The were born a year after the baby boomers.
Generation Y refers to the population group in the US born from somewhere around 1976 to around 2000. All population groups tend to be tarred with generalizations, some accurate, and some completely missing the mark. Generation Y followed Generation X. The coiners of generation names evidently had a lapse of creativity.
For the 1st definition of generation the synonyms are age group and peer group.For the 2nd definition of generation the synonyms can be creation, production, initiation, origination or inception.