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keyword

what is the definition of quantum theory

Monthly search volume and cost-per-click data for "what is the definition of quantum theory" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=what+is+the+definition+of+quantum+theory&country=us" +--------------+------------------+ | volume | 1,600 | | cpc | $3.49 | | competition | 0.01 | | country | US | | updated | 2026-06-13 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
define quantum theory 9,900 $8.61 20/20
quantum theory definition 9,900 $2 20/20
definition of quantum physics 9,900 $2 17/20
quantum physics definition 9,900 $4.05 17/20
definition of quantum mechanics 9,900 $6.54 16/20
definition of quantum theory 9,900 $2 16/20
quantum mechanics definition 9,900 $6.54 16/20
what is the quantum theory 2,900 $2 15/20
what is quantum theory 1,300 $7.83 18/20
the quantum theory 1,300 $1.52 15/20

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=what+is+the+definition+of+quantum+theory&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