Be aware of the nuances of the words that you choose. When deciding whether to use a particular synonym, make sure that you understand the shades of meaning in the word. An effective way to do this is to run the word through an Internet search engine and see how it is used in context.
For example, consider force, compel, and require. All three indicate that a party must do something.
Require is the most neutral, or least “loaded” form of the word.
“The licensee is required to obtain all necessary permits.”
Compel is a more forceful term and thus more appropriately used in an adversarial context.
“In the event that you do not respond to our demand letter within 7 days, we will be compelled to commence legal action.”
Force indicates actual physical compulsion, or a requirement to do something very much against one’s will.
“Because of the court order, the company was forced to allow the tax authorities to search the company’s premises for evidence of tax evasion.”
Learn how to use a thesaurus, an English language synonym finder. You can find a good on-line thesaurus at http://thesaurus.reference.com/.