Some writers use s/he instead of either `he' or `she' when they are referring to someone who has not been identified. By using s/he, the writer does not need to say whether the person is male or female. Talk to your doctor and see if s/he knows of any local groups.

When it comes to definitions, Cambridge and Oxford take fairly different approaches. While the Oxford English Dictionary gives you the meaning of the word as well as its origin, the Cambridge Dictionary gives a more practical explanation along with an example of how to use the word in a sentence.

proper noun. The World Wide Web is a computer system which links documents and pictures into a database that is stored in computers in many different parts of the world and that people everywhere can use.

Cambridge Dictionaries Online began offering these dictionaries completely free of charge in 1999 — and today, Cambridge Dictionary is still growing.