1. The drug is variously known as crack or freebase.

2. Wolves hunt in groups known as packs.

3. This phenomenon has become known as the "Californian syndrome".

4. He was known as a radical reformer/thinker/politician.

5. Sodium chloride is more commonly known as salt.

6. The most complicated motorway interchange in Britain is known as Spaghetti Junction.

7. In military parlance this is known as a fast retreat.

8. They manufacture the class of plastics known as thermoplastic materials.

9. He became known as the enfant terrible of British theater.

10. He was known as Bonzo to his friends.

11. Christopher is commonly known as Kit.

12. The drug is commonly known as Ecstasy.

13. She was known as the 'Iron Lady'.

14. rain, snow and hail, collectively known as 'precipitation'

15. She is known as a great beauty.

16. Westminster is known as 'the mother of parliaments'.

17. Sigmund Freud is known as the father of psychoanalysis.

18. Bismarck, otherwise known as 'the Iron Chancellor'

19. Brindley was known as a very, very fast driver.

20. Nitrous oxide is commonly known as laughing gas.

21. He is little known as an artist.

22. This area is known as the' Cornish Riviera '.

23. Manchester is known as the gateway to the north.

24. Peter Wilson(http://sentencedict.com), also known as 'the Tiger'.

25. Rain, snow and hail are collectively known as precipitation.

26. Jones was known as soccer's hard man .

27. The French are known as a food-loving people.

28. Electronic retailing has predictably become known as etailing.

29. And this is Terry, otherwise known as 'Muscleman'.

30. Thenceforth he became known as the Lord Protector.