keyword

define rule

Monthly search volume and cost-per-click data for "define rule" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=define+rule&country=us" +--------------+------------------+ | volume | 6,600 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-20 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
rule	110,000	$0.19	20/20
definition of rule	6,600	$0	20/20
definition of rules	6,600	$0	20/20
meaning of rule	6,600	$0	20/20
meaning of rules	6,600	$0	20/20
rule meaning	6,600	$0	20/20
rules meaning	6,600	$0	20/20
rule definition	2,400	$0	20/20
rule dictionary	2,400	$0	20/20
rules definition	2,400	$0	20/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=define+rule&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt