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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)

antiremonstrant
nounExtremely Rare / Obsolete
/ˌæntɪrɪˈmɒnstrənt/A person opposed to the Remonstrants (a liberal theological faction within Dutch Calvinism in the early 17th century).
antirepublican
adjectivenounC2/Rare
/ˌæn.ti.rɪˈpʌb.lɪ.kən/Opposed to or against the principles, systems, or supporters of a republic; opposing republican government.
antiresonance
nounLow
/ˌantɪˈrɛz(ə)nəns/A condition or state where the amplitude of oscillation in a system is significantly reduced or at a minimum when an external periodic force is applied, due to destructive interference.
antiretroviral
adjectivenounC1
/ˌæntiˌrɛtrəʊˈvaɪrəl/A drug that acts against retroviruses (such as HIV) to inhibit their development.
antiroll bar
nounB2
/ˌæn.tiˈrəʊl ˌbɑː(r)/A rigid metal bar in a vehicle's suspension system that connects the left and right wheels, designed to reduce body roll during cornering.
antirrhinum
nounC
/ˌantɪˈrʌɪnəm/A genus of flowering plants, commonly known as snapdragons.
antirust
adjectivenounLow to Medium (technical/specialised)
/ˌæn.tiˈrʌst/Preventing or protecting against rust (the reddish-brown coating that forms on iron or steel when exposed to air and moisture).
antisana
nounRare
/ˌantɪˈsɑːnə/A proper noun referring to Antisana Volcano in Ecuador.
antiscorbutic
adjectivenounVery Low (Technical/Historical)
/ˌæntɪskɔːˈbjuːtɪk/A substance or agent that prevents or cures scurvy.
antiselection
nounLow
/ˌæn.ti.sɪˈlek.ʃən/A principle or action in insurance/biology to avoid high-risk individuals.
antisemite
nounLow frequency, high recognition
/ˌæntiˈsemaɪt/A person who holds prejudice, hostility, or discrimination against Jewish people.
antisemitism
nounC1/C2
/ˌæntiˈsemɪtɪzəm/Hostility to, prejudice against, or discrimination against Jews as a religious, ethnic, or racial group.
antisense rna
nounVery Low
/ˌæn.tiˈsens ˌɑːr.ɛnˈeɪ/A single-stranded RNA molecule that is complementary to a messenger RNA (mRNA) strand, capable of binding to it and inhibiting its translation into protein.
antisepsis
nounC1
/ˌantɪˈsɛpsɪs/The practice of using substances or procedures to destroy microorganisms and prevent infection, especially on living tissue.
antiseptic
adjectivenounB2
/ˌantɪˈsɛptɪk/A substance that prevents or inhibits the growth of disease-causing microorganisms, typically used on living tissue like skin to clean wounds or prevent infection.
antisepticize
verb-transitiveRare / Technical
/ˌæn.tiˈsep.tɪ.saɪz/To make sterile or free from harmful bacteria or disease-causing agents by applying an antiseptic substance.
antiserum
nounC2
/ˈæntiˌsɪərəm/A blood serum containing antibodies against specific antigens, used to treat or provide temporary immunity against diseases, toxins, or venoms.
antisexist
adjectivenounLow
/ˌæntiˈsɛksɪst/Opposed to or combating sexism; against discrimination based on sex or gender.
antishake
adjectivenounLow-medium (common in technical, photography, and consumer electronics contexts; rare in general discourse)
/ˌantɪˈʃeɪk/Designed to reduce or prevent the effects of shaking, specifically unwanted camera movement during photography or filming.
antislavery
adjectivenounC2
/ˌæn.tiˈsleɪ.vər.i/Opposed to slavery as an institution or practice.

Showing 5621–5640 of 8734 words.