seodata.dev

keyword

define illness

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

$ curl "https://app.seodata.dev/v1/keyword?q=define+illness&country=us" +--------------+------------------+ | volume | 5,400 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-19 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
definition of illness 5,400 $0 20/20
illness definition 5,400 $0 20/20
illness meaning 5,400 $0 20/20
illnesses definition 5,400 $0 20/20
definition illness 5,400 $0 17/20
what is an illness 1,300 $0 20/20
what is illness 1,300 $0 20/20
what is illnesses 1,300 $0 20/20
illnesses meaning 260 $0 20/20
meaning of illness 260 $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://app.seodata.dev/v1/keyword?q=define+illness&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