keyword

define hallucination

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

$ curl "https://api.seodata.dev/v1/keyword?q=define+hallucination&country=us" +--------------+------------------+ | volume | 8,100 | | cpc | $0.03 | | competition | 0 | | country | US | | updated | 2026-06-25 | +--------------+------------------+

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
hallucination	90,500	$2.23	20/20
hallucinations	90,500	$1.16	20/20
definition of hallucination	8,100	$0.03	20/20
hallucination definition	8,100	$0.26	20/20
hallucination meaning	8,100	$1.58	20/20
hallucinations definition	6,600	$4.85	20/20
hallucinations meaning	6,600	$8.35	20/20
meaning of hallucination	6,600	$0.05	20/20
hallucinating meaning	5,400	$0.08	20/20
what are hallucinations	5,400	$0.41	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+hallucination&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