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keyword

language development 21 months

Monthly search volume and cost-per-click data for "language development 21 months" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=language+development+21+months&country=us" +--------------+------------------+ | volume | 10 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-22 | +--------------+------------------+
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
how many words should a 21 month old say 480 $0.02 7/20
21-month old milestones speech 110 $4.2 7/20
21 month old milestones speech 90 $2 7/20
21-month-old milestones speech 90 $2 7/20
21 month old talking 30 $0 9/20
21-month old language development 20 $0 12/20
speech development 21 months 20 $0 12/20
21 month old language development 20 $0 11/20
21-month-old language development 20 $0 11/20
what words should a 21 month old be saying 10 $0 9/20

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=language+development+21+months&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