keyword

diphthong

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

$ curl "https://api.seodata.dev/v1/keyword?q=diphthong&country=us" +--------------+------------------+ | volume | 33,100 | | cpc | $0.01 | | 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
diphthongs	33,100	$0	20/20
diphthong meaning	5,400	$0	20/20
diphthongs meaning	5,400	$0	20/20
what are the diphthongs	5,400	$0	20/20
what is a diphthong	5,400	$0	20/20
define diphthong	3,600	$0	20/20
diphthong definition	3,600	$0	20/20
diphthongs definition	3,600	$0	20/20
diphthongs examples	2,900	$0	14/20
is a diphthong	50	$0	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://api.seodata.dev/v1/keyword?q=diphthong&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