keyword

best books to build vocabulary

Monthly search volume and cost-per-click data for "best books to build vocabulary" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=best+books+to+build+vocabulary&country=us" +--------------+------------------+ | volume | 320 | | cpc | $0.67 | | competition | 1 | | country | US | | updated | 2026-06-27 | +--------------+------------------+

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
best book for improving vocabulary	320	$0.67	18/20
best books for improving vocabulary	320	$0.67	17/20
best books to boost vocabulary	320	$0.67	17/20
best books for increasing vocabulary	320	$0.75	16/20
best books to expand vocabulary	320	$0.67	16/20
best books to increase vocabulary	320	$0.67	16/20
best books for vocabulary improvement	320	$0.67	14/20
best books to read to build vocabulary	90	$0.73	15/20
best books to read to enhance vocabulary	90	$1.07	14/20
best books to read to increase vocabulary	90	$1.07	14/20

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=best+books+to+build+vocabulary&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