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Related Keywords

Discover semantically related terms for your target keyword — synonyms, alternative phrasings, and colloquial expressions your audience actually uses.

Written by Mike

Discover Semantically Related Terms Your Audience Uses

The Related Keywords report finds all keyword variations that are semantically related to your seed keyword — including synonyms, colloquial alternatives, and phrases that share the same search intent. Unlike Keywords Selection (which requires your seed word to appear in the result), Related Keywords surfaces terms your audience actually uses, even when they phrase things differently.

What you can achieve:

  • Capture traffic you'd otherwise miss: Discover synonyms and alternative phrases your audience searches — content that covers these variations ranks for more queries.

  • Build a natural semantic content structure: Related keywords reveal how Google connects topics — use them to ensure your content covers the full intent landscape around a subject.

  • Find unexpected keyword opportunities: Colloquial and informal variations (e.g., "buy a bike" vs. "purchase a bicycle") often have lower KD while sharing the same intent.

Getting Started

  1. Navigate to Keyword Research → SEO Research → Related Keywords in the left sidebar.

  2. Enter your seed keyword and select your regional database.

  3. Click Search. The report loads all semantically related keyword variations.

  4. Sort by Connection Strength descending to see the most semantically close variations first.

  5. Apply Filters (volume, KD, CPC, intent) to narrow to the most actionable opportunities.

Key Metrics Explained

  1. Connection Strength: The number of Top 20 pages that rank for both the analyzed keyword and the related keyword. Higher = more semantically close. Prioritize high-connection-strength terms for the same page.

  2. Volume: Average monthly searches. Compare to your seed keyword — related terms often have similar or sometimes higher volume.

  3. KW Difficulty: Ranking difficulty score 0–100. Related keywords sometimes have significantly lower KD than the head term.

  4. CPC: Cost-per-click in paid search. Use this to validate commercial intent for related terms.

  5. Intent: Available for Google US and UA — tells you whether the related term signals informational, transactional, commercial, or navigational intent.

Pro Tip: Use Related Keywords to Enrich Existing Content

Already have a page ranking for your seed keyword? Related Keywords tells you exactly which terms to weave in to increase its ranking footprint.

  1. Filter by Connection Strength > 5 — these are the terms most closely associated with your keyword in Google's eyes.

  2. Cross-check the list against the keywords your page already ranks for (use Top Pages in Site Analysis to check).

  3. Add the gaps — terms with high connection strength that you don't yet rank for — naturally into your existing page content, headings, or FAQs.

  4. The goal: Enriching one existing page with 5–10 closely related terms can double its keyword footprint without creating new content.

⚠️ Important: By default, Related Keywords filters out misspelled variations. To include all results (useful for understanding the full scope of how people search), remove the default misspelling filter by clicking the X on the active filter badge.

❓ Frequently Asked Questions

Q: What's the difference between Related Keywords and Search Suggestions?
​A: Related Keywords are drawn from Serpstat's keyword database and show historically popular terms. Search Suggestions are real-time autocomplete ideas pulled directly from Google (and Amazon/Perplexity for US) — they're more current but may have less historical volume data.
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Q: Why do some related keywords have very different topics than my seed?
​A: Semantic relatedness is determined by co-ranking patterns — if many pages rank for both your seed and another term, Serpstat considers them related. This can surface unexpected topic connections that reflect real user behavior.
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Q: Can I use Related Keywords for PPC campaign expansion?
​A: Yes — filter by high CPC to find commercial-intent related terms you may not be bidding on. This is a quick way to expand ad group coverage with semantically validated keywords.

Next Steps

  • Keywords Selection — Get exact-match variations of your seed keyword with full volume and difficulty data.

  • Search Suggestions — Discover real-time autocomplete ideas for further keyword expansion.

  • Top by Keyword — See who's currently ranking for any related keyword you want to target.

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