How to Use "pun" with Example Sentences

1. The russian search engine 's name is both an acronym and a pun .
2. Sometimes people get jittery ( pun intended ) when it comes to caffeine consumption .
3. China is also the only economy of any size that is actually still growing , albeit at a subprime ( no pun intended ) 6-8 per cent .
4. For some it is a pun on the end of times , for others on the eponymous and violent video game involving vehicular combat , an appropriate metaphor .