12-Letter Words Starting With HY

There are 148 12-letter words that start with HY. 32 are common words, such as HYDROCARBONS and HYDROCEPHALI. A rarer one is HYPOTONICITY. In this set, R is the most frequent open letter (116 words). 11 words contain a doubled letter.

Full list 148

Common words

hydrocarbonshydrocephalihydrocephalyhydrodynamichydrogenatedhydrogenateshydrologistshydrometrieshydrophobiashydroplaninghydrosphereshydrotherapy
hydrocarbonshydrocephalihydrocephalyhydrodynamichydrogenatedhydrogenateshydrologistshydrometrieshydrophobiashydroplaninghydrosphereshydrotherapyhygienicallyhyperlinkinghypertensionhypertensivehyperthyroidhyphenationshypnotherapyhypnoticallyhypochondriahypocriticalhypoglycemiahypoglycemichypothalamushypothermiashypothesizedhypothesizeshypotheticalhypothyroidshysterectomyhystericallyhydnocarpatehydrastininehydrochlorichydrofluorichydrogeologyhydrographerhydrographichydrokinetichydrologicalhydrolyzateshydropathieshydropathisthydrophiloushydroquinonehydrostaticshydrothermalhydrotropismhygrophiloushylomorphismhymenopteranhyperacidityhyperbolicalhyperbolizedhyperbolizeshyperboloidshypercorrecthyperkinesiahypermarketshyperostosishyperplasiashyperpyrexiahyperspatialhyperthermiahypertrophichypnogenesishypnotizablehypochloritehypocoristichypocycloidshypodermiseshypogastriumhypoglossalshypognathoushypostasizeshypostatizedhypostatizeshypotensionshypothalamichypothecatedhypothecateshypothesizerhypoxanthinehysterogenichydralazineshydrobiologyhydrocolloidhydrocrackedhydrocrackerhydrogenaseshydrolysateshydrolyzablehydromancieshydromedusaehydrometeorshydromorphichydronicallyhydrospherichydroxylaseshydroxylatedhydroxylateshydroxyureashydroxyzineshymenopteronhyoscyamineshypabyssallyhyperactiveshyperarousalhyperbolistshyperboreanshypercapniashyperchargedhyperchargeshypercomplexhypercriticshyperendemichyperexcitedhyperextendshyperintensehyperkineseshyperkinesishyperkinetichyperlipemiahyperlipemichypermnesiashypermutablehyperostoseshyperostotichyperphagiashyperplastichyperreactorhyperrealismhyperrealisthyperstheneshypersthenichypersurfacehyperthermichypertypicalhypocalcemiahypocalcemichypodiploidyhypokalemiashypolimnionshypotensiveshypothecatorhypothenuseshypotonicity

About this list

Words
148 (32 common words)
Common example
hydrocarbons
Rare example
hypotonicity
Doubled letters
11
Ending in S
57
Most frequent letter
R (116)

Questions

How many 12-letter words starting with hy are there?

148. 32 of them are common words.

What is a common example?

HYDROCARBONS is among the common words in this set.