What is Brand Lexicon?
A curated vocabulary of approved, preferred, and prohibited terms that ensures consistent language across all brand communications.
Brand Lexicon Explained
A brand lexicon is the official dictionary of terms a brand uses in its communications. It includes approved terminology (the preferred way to refer to products, features, and concepts), prohibited words (terms to avoid due to brand, legal, or competitive reasons), industry-specific vocabulary (technical terms with defined usage), branded terminology (proprietary names, trademarked phrases), and style preferences (e.g., "sign up" not "register," "team members" not "employees"). A well-maintained lexicon eliminates inconsistency across writers, departments, and content types. It is especially valuable for onboarding new writers, briefing freelancers, and configuring AI review tools to check terminology compliance.
Frequently Asked Questions
What should a brand lexicon include?
Approved terms (preferred language for products, features, concepts), prohibited terms (words to avoid and their preferred alternatives), technical vocabulary (industry terms with defined usage), branded terms (trademarked phrases with capitalization and usage rules), and contextual guidance (when to use formal vs. informal alternatives).
How do you maintain a brand lexicon?
Assign an owner (usually the content lead or brand manager), review quarterly, update when new products launch or terminology evolves, make it searchable and easily accessible, and integrate key terms into your content review criteria so compliance is checked automatically.
How does a brand lexicon differ from a glossary?
A glossary defines what terms mean. A brand lexicon defines which terms to use and which to avoid. A glossary says "SaaS means Software as a Service." A brand lexicon says "Use cloud platform, not SaaS product" based on brand preference.
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