seodata.dev

keyword

difficult words

Monthly search volume and cost-per-click data for "difficult words" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=difficult+words&country=us" +--------------+------------------+ | volume | 2,400 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-05-24 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
hard words 14,800 $0 20/20
hard english words 5,400 $0.03 20/20
hardest english words 5,400 $0.15 18/20
hard words english 4,400 $0.27 20/20
hard words in english 4,400 $0.02 20/20
hardest words in english 4,400 $0.02 18/20
complicated words 1,600 $0.04 20/20
difficult vocabulary words 1,600 $0 20/20
hard vocabulary words 1,600 $0.96 20/20
difficult english words 720 $0.03 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=difficult+words&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt