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# Introduction

> **Source:** ASD-STE100 Issue 9, January 2025
> **Section:** INTRO
> **Pages:** 41-41 of 434 (1 pages)

# Page 41 of 434

## Section 1 – Words

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Summary of the rules
Which words can you use?
Rule 1.1 Use words that are:
- Approved in the dictionary
- Technical nouns
- Technical verbs.
Part of speech
Rule 1.2 Use approved words from the dictionary only as the specified part of speech.
Approved meaning
Rule 1.3 Use approved words only with their approved meanings.
Forms of verbs and adjectives
Rule 1.4 Use only the approved forms of verbs and adjectives.
Technical nouns
Rule 1.5 You can use words that you can include in a technical noun category.
Rule 1.6 Use a word that is not approved in the dictionary, only when it is a technical noun or
part of a technical noun.
Rule 1.7 Do not use words that are technical nouns as verbs.
Rule 1.8 Use technical nouns that are approved in your company, industry, or subject field.
Rule 1.9 When you must select a technical noun, use one which is short and easy to
understand.
Rule 1.10 Do not use regional, slang, or jargon words as technical nouns.
Rule 1.11 Do not use different technical nouns for the same item.
Technical verbs
Rule 1.12 You can use verbs that you can include in a technical verb category.
Rule 1.13 Do not use technical verbs as nouns.
Spelling
Rule 1.14 Use American English spelling unless other official directives tell you differently.
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