- high-density polyethylene
- high-dependency
- high-endhigh-end synonyms
- High Energy Astrophysical Observatory
- high-energy physics
- higherhigher synonyms
- higher criticism
- higher educationhigher education synonyms
- higher law
- higher mathematics
- higher powerhigher power synonyms
- higher rate
- higher self
- Higher Still
- higher-uphigher-up synonyms
- highest common factor
- Highet
- high explosive
- highfalutinhighfalutin synonyms
- high fashion
- high fidelity
- high finance
- high-fivehigh-five synonyms
- highflier
- high-flownhigh-flown synonyms
- high-flyer
- highflying
- high frequencyhigh frequency synonyms
- high-fructose corn syrup
- high-functioning
- high gear
- High German
- high-gradehigh-grade synonyms
- high ground
- high-handedhigh-handed synonyms
- high hathigh hat synonyms
- high-hat cymbals
- high heelshigh heels synonyms
- highhole
- High Holidays
- High Holy Day
- high hopeshigh hopes synonyms
- high horsehigh horse synonyms
- high hurdles
- high-impact
- high-incomehigh-income synonyms
- high-intensity interval training
- highjackhighjack synonyms
- high jinkshigh jinks synonyms
- high jumphigh jump synonyms
- high jumper
- high key
- high-keyed
- highlandhighland synonyms
- Highland cattle
- Highland Clearances
- Highland dress
- Highlander
- Highland fling
- Highland Games
- Highland Park
- Highlands
- high-levelhigh-level synonyms
- high-level language
- high-level waste
- highlife
- highlighthighlight synonyms
- highlighter
- highlightinghighlighting synonyms
- highline
- high liver
- high-low
- high-low-jack
- highlyhighly synonyms
- highly strung
- high-maintenance
- High Mass
- high milling
- high-mindedhigh-minded synonyms
- high-muck-a-muckhigh-muck-a-muck synonyms
- high-necked
- highnesshighness synonyms
- high noonhigh noon synonyms
- high-occupancy vehicle
- high-occupancy vehicle lane
- high-octane
- high off the hog, eat
- high onhigh on synonyms
- high-pass filter
- high-pitchedhigh-pitched synonyms
- high placehigh place synonyms
- high places
- high places, friends in
- High Point
- high polymer
- high-powerhigh-power synonyms
- high-poweredhigh-powered synonyms
- high-pressurehigh-pressure synonyms
- high-pricedhigh-priced synonyms
- high priest
- high priestess
- high priesthood
- high profilehigh profile synonyms
- high-proof
- high-qualityhigh-quality synonyms
- high reliefhigh relief synonyms
- High Renaissance
- high-res
- high-resolution
- high-risehigh-rise synonyms
- high-riser
- high-risk
- highroad
- high rollerhigh roller synonyms
- high-rolling
- high schoolhigh school synonyms
- high sea
- high seashigh seas synonyms
- high season
- high signhigh sign synonyms
- Highsmith
- high societyhigh society synonyms
- high-soundinghigh-sounding synonyms
- high-speedhigh-speed synonyms
- high-speed downlink packet access
- high-speed steel
- high-spiritedhigh-spirited synonyms
- high spiritshigh spirits synonyms
- high spothigh spot synonyms
- high-step
- high-stepper
- high-stepping
- high stick
- high-sticking
- High Street
- high-strunghigh-strung synonyms
- high style
- hight
- high table
- hightailhightail synonyms
- hightail ithightail it synonyms
- High Tatra
- high teahigh tea synonyms
- high-techhigh-tech synonyms
- high technology
- high-tension
- high-test
- high-ticket
- high tidehigh tide synonyms
- high timehigh time synonyms
- high-toned
- high-top
- high tops
- high treason
- highty-tighty
- high-uphigh-up synonyms
- highveld
- high-voltage
- highwall
- high waterhigh water synonyms
- high-water markhigh-water mark synonyms
- high waters
- highwayhighway synonyms
- Highway Code
- highway contract route
- highwaymanhighwayman synonyms
- highway patrolhighway patrol synonyms
- highway robberyhighway robbery synonyms
- high wine
- high wire
- high-wire act
- high-wroughthigh-wrought synonyms
- High Wycombe
- high yellow
- H.I.H.
- hi-hat
- HII region
- Hiiumaa
- hijab
- hijackhijack synonyms
- hijackerhijacker synonyms
- Hijaz
- hijiki
- hijra
- Hijrah
- hikehike synonyms
- hike out
- hikoi
- hilarioushilarious synonyms
- hilarityhilarity synonyms
- Hilarius
- Hilary
- Hilary of Poitiers
- Hilary term
- Hilbert
- Hilbert space
- Hilda
- Hildebrand
- Hildegarde
- Hildegard of Bingen
- Hildegard von Bingen
- Hildesheim
- hilding
- hillhill synonyms
- Hilla
- Hillary
- hillbillyhillbilly synonyms
- hillbilly musichillbilly music synonyms
- hill climb
- hill country
- Hillcrest Heights
- Hillel
- Hillel Foundation
- Hiller
- Hillerman
- hillfort
- Hilliard
- Hillingdon
- Hillis
- Hillman
- hill myna
- hill mynah
- hillockhillock synonyms
- hill of beanshill of beans synonyms
- hillshills synonyms
- Hillsboro
- Hillsborough
- Hillsdale
- Hills Hoist
- hillsidehillside synonyms
- hillsite
- hill station
- hilltophilltop synonyms
- hillyhilly synonyms
- Hillyer
- Hilo
- hilthilt synonyms
- Hilton
- hilum
- hilus
- Hilversum
- himhim synonyms
- Himachal Pradesh
- Himalayan
- Himalayan cat
- Himalayan guinea pig
- HimalayasHimalayas synonyms
- Himalia
- himation
- himbo
- Himeji
- Himes
- HIMI
- Himmler
- Himmler, Heinrich
- Hims
- himself
- Himyarite
- Himyaritic
- hin
- hinahina
- hinau
- Hinault
- Hinayana
- Hinayanist
- Hinckley
- hincty
- hindhind synonyms
- Hindafell
- hindbrain
- Hindemith
- Hindenburg
- Hindenburg line
- hinderhinder synonyms
- hinderedhindered synonyms
- hinderinghindering synonyms
- Hindfell
- hindgut
- Hindi
- hindmosthindmost synonyms
- Hindoo
- Hindoostani
- hindquarter
- hindrancehindrance synonyms
- hind shank
- hindsighthindsight synonyms
- hind tit
- Hindu
- Hindu-Arabic numeral
- Hindu calendar
- Hinduism
- Hinduize
- Hindu Kush
- Hindus
- Hindustan
- Hindustani
- Hindutva
- hindward
- hindwing
- Hines