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English Words Starting With H

5,990 entries — pick a word to see its definition, pronunciation, and usage.

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Noun Verb Adjective Adverb Plural noun Combining form Verb (transitive)Verb (intransitive)Verb (ambitransitive)

high-energy physics
nounLow
/ˌhaɪ ˈen.ə.dʒi ˈfɪz.ɪks/The branch of physics that studies the fundamental particles of matter and the forces acting between them, typically involving particle accelerators and collisions at extremely high energies.
high-five
nounverbverb-intransitive+1B1
/ˌhaɪ ˈfaɪv/A celebratory gesture where two people slap each other's raised open hand, typically at head height or above, to express congratulations, greeting, or shared excitement.
high-flyer
nounC1
/ˌhaɪ ˈflaɪ.ər/A person who is or is expected to be highly successful, especially in a career or academic setting.
high-fructose corn syrup
nounC1
/ˌhaɪ ˌfrʌk.təʊs ˈkɔːn ˌsɪr.əp/An artificial sweetener made by processing corn starch to convert some of its glucose into fructose, commonly used as a cheaper substitute for sugar in processed foods and beverages.
high-grade
adjectiveverb-transitiveC1
/ˌhaɪ ˈɡreɪd/Of superior quality, standard, or value.
high-hat
adjectivenounverbC1
/ˌhaɪ ˈhæt/A pair of cymbals mounted on a stand and played with a foot pedal, primarily used in drum kits.
high-hat cymbals
plural-nounLow
/ˌhaɪ ˈhæt ˈsɪmb(ə)lz/A pair of cymbals mounted on a stand, operated by a foot pedal to bring them together, producing rhythmic and sustained sounds.
high-intensity interval training
nounB2
/ˌhaɪ ɪnˌten.sə.ti ˈɪn.tə.vəl ˌtreɪ.nɪŋ/A form of exercise consisting of alternating short, very intense anaerobic bursts of activity with periods of less intense recovery or rest.
high-key
adjectivenounMedium-Low (informal, slang)
/ˌhaɪ ˈkiː/To a great extent; openly and emphatically; not hiding one's feelings or opinions.
high-level language
nounC2
/ˌhaɪ ˈlev.əl ˈlæŋ.ɡwɪdʒ/A programming language that uses abstract, human-readable syntax and concepts, designed to be easier for programmers to use than machine-level instructions.
high-level waste
nounC1
/ˌhaɪ ˈlev.əl ˈweɪst/Highly radioactive nuclear waste produced from spent nuclear reactor fuel or nuclear weapon reprocessing.
high-low
adjectivenounLow
/ˌhaɪ ˈləʊ/A combination or contrast between high and low levels, values, or states; used to describe fluctuation or a range between extremes.
high-low-jack
nounVery Low
/ˌhaɪ ləʊ ˈdʒæk/A specific, low-stakes poker game or a children's card game.
high-muck-a-muck
nounLow
/ˌhaɪ ˌmʌk ə ˈmʌk/A person who holds a position of great importance or authority, often used with a sense of self-importance or pomposity.
high-occupancy vehicle lane
nounMedium
/ˌhaɪ ˈɒkjəpənsi ˈviːɪkəl leɪn/A designated traffic lane reserved for vehicles carrying a minimum number of passengers.
high-pass filter
nounlow
/ˌhaɪ pɑːs ˈfɪltə(r)/An electronic circuit or software algorithm that allows signals with a frequency higher than a certain cutoff point to pass through, while attenuating (reducing) lower frequency signals.
high-pressure
adjectiveverb-transitiveB2
/ˌhaɪ ˈpreʃ.ər/involving or withstanding a high level of physical pressure; involving a lot of stress or demands.
high-rise
adjectivenounB2
/ˈhaɪ ˌraɪz/A tall building with many floors, typically for residential or office use.
high-riser
nounC1
/ˌhaɪ ˈraɪ.zər/A tall building containing many floors, particularly residential apartments.
high-speed downlink packet access
nounLow (Technical)
/ˌhaɪ spiːd ˈdaʊn.lɪŋk ˈpæk.ɪt ˈæk.ses/A 3G mobile telephony protocol allowing faster data transmission from the network to the user's device (downlink).

Showing 3101–3120 of 5990 words.