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English Words Starting With A

8,734 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)

antitruster
nounC2 (Very low frequency, highly specialised)
/ˌæn.tiˈtrʌs.tər/A person who advocates for or enforces antitrust laws.
antitussive
adjectivenounC2
/ˌantɪˈtʌsɪv/A medicine that suppresses or relieves coughing.
antitwilight arch
nounVery Low
/ˌantɪˈtwaɪlaɪt ɑːtʃ/A purplish or reddish atmospheric optical phenomenon sometimes visible in the sky opposite the rising or setting sun.
antitype
nounC2/Rare
/ˈæntɪtʌɪp/A person or thing that is foreshadowed or represented by an earlier type, symbol, or figure (especially in a theological context).
antiutopia
nounC1/C2 - Low Frequency
/ˌantɪjuːˈtəʊpɪə/A dystopia; a society or fictional world that is the opposite of an ideal utopia, characterized by extreme suffering, oppression, or injustice.
antivaxxer
nounHigh (in media/public discourse); Low (in everyday conversation outside specific contexts).
/ˌæn.tiˈvæk.sər/A person who is strongly opposed to vaccination, often on ideological grounds.
antivenin
nounLow
/ˌæntiˈvenɪn/A serum used as an antidote to snake or spider venom.
antivenom
nounC2
/ˌantɪˈvɛnəm/A substance used to counteract the venom of a specific poisonous animal, such as a snake, spider, or scorpion.
antiviral
adjectivenounC1
/ˌantɪˈvaɪrəl/Relating to or being a substance (such as a drug) that is used to treat or prevent infections caused by viruses.
antivirus
nounB2
/ˈæntiˌvaɪrəs/A program designed to detect, prevent, and remove malicious software (malware) from a computer system.
antivitamin
nounC2 / Low / Highly Specialized
/ˌæn.tiˈvɪt.ə.mɪn/A substance that interferes with the absorption, metabolism, or function of a vitamin in the body.
antivivisectionist
adjectivenounVery Low
/ˌæn.tiˌvɪv.ɪˈsek.ʃən.ɪst/A person who opposes vivisection (the practice of performing operations on live animals for scientific research).
antiwork
adjectivenounRare (emerging in specific online and socio-political contexts)
/ˈæn.tiˌwɜːk/Opposition to work or traditional employment, particularly regarding its cultural, economic, or psychological demands.
antiwork movement
nounLow to Medium (emerging term, common in specific online/discourse communities)
/ˌæn.tiˈwɜːk ˈmuːv.mənt/A social and political movement that advocates for the reduction or abolition of work, questioning the centrality of labor in modern life and seeking alternatives to traditional employment.
antiworld
nounVery Low / Scientific / Specialised
/ˈæntiˌwɜːld/A hypothetical world composed of antimatter, where particles have charges opposite to those in our normal matter world.
antixerophthalmic vitamin
nounVery Rare
/ˌantɪˌzɪərɒfˈθælmɪk ˈvɪtəmɪn, ˈvaɪtəmɪn/The chemical substance that prevents or cures xerophthalmia (a pathological dryness of the eyes). This is a technical name for a specific form of Vitamin A, particularly retinol.
antler
nounC1
/ˈænt.lə(r)/One of the paired, branched horns that grow on the head of male deer and related species; these are shed and regrown annually.
antler moth
nounLow
/ˈænt.lə ˌmɒθ/A nocturnal moth (Cerapteryx graminis) of the family Noctuidae, characterized by wing markings that resemble the antlers of a deer.
antlerite
nounVery low
/ˈæntləˌraɪt/A green mineral, a basic copper sulfate with the chemical formula Cu₃(SO₄)(OH)₄.
antlia
nounVery Low
/ˈæntliə/A small, faint constellation in the southern sky named by Nicolas-Louis de Lacaille in the 18th century; literally 'pump' in Latin, representing an air pump.

Showing 5661–5680 of 8734 words.