baby boom 
noun informal
A temporary marked increase in the birth rate, especially the one following the Second World War: the number of college graduates mushroomed in the early- to mid-1970s, thanks to the baby boom [as modifier]: the baby boom generation...
- He observes that the post war baby boom occurred between about 1948 and 1965.
- There has been a considerable geographical shift in population over the last fifty years, disguised in part by the overall increase resulting from the baby boom.
- Following the baby boom, fertility rates declined over the late 1960s and 1970s.
- Banffshire
- bang
- Bangalore
- Bangalore torpedo
- bangarang
- bang away at
- banger
- bang for one's (or the) buck
- bang goes ——
- banging
- Bangkok
- Bangla
- Bangladesh
- Bangladeshi
- bangle
- bang on
- bang on about
- Bangor
- bang (or dead) to rights
- bang (or knock) people's heads together
- bang someone/thing up
- bang something out
- bangtail
- bangtail muster
- Bangui