Rule 1.6: Use non-approved words only as technical nouns

What a checker looks for

A clear deviation from the rule.

• Flag a dictionary-disapproved word (e.g. 'base', 'backup', 'main') used in its ordinary general sense rather than as, or as part of, a technical noun.
• Flag a word that is entirely absent from the dictionary and is used in a general, non-technical sense rather than as, or as part of, a technical noun.
• Confirm the word functions as a genuine technical noun for a specific concept in a subject field before allowing it (e.g. 'base of the triangle', 'backup file', 'main landing gear').

What this rule does not cover

• The same disapproved or unlisted word can be compliant in one sentence (technical-noun use) and a violation in another (general use) — judge each occurrence separately.

How to fix it

Replace the disapproved word with the specific alternative the STE dictionary entry gives for it (e.g. 'base' -> 'bottom', 'main' -> 'primary' are illustrative, not a fixed universal pairing — verify against the dictionary entry for the word in context), or the approved domain term when the word is part of a technical noun; leave it unchanged when it is genuinely part of an established technical noun.

Constraints on the fix

• Never replace a disapproved word inside an established technical noun (e.g. do not turn 'main landing gear' into 'primary landing gear').