Browse by letter

English Words Starting With A

8,734 entries — pick a word to see its definition, pronunciation, and usage.

Filter

Parts of speech

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

antidoron
nounVery Rare (used almost exclusively within specific religious contexts)
/ˌantɪˈdɔːrɒn/The bread that is blessed and distributed to the congregation at the end of the Divine Liturgy in Eastern Orthodox and Eastern Catholic churches, but is not consecrated as the Eucharist.
antidote
nounverb-transitiveB2
/ˈæn.ti.dəʊt/A substance that counteracts a poison.
antidune
nounVery low
/ˈæntiˌdjuːn/A type of sand or sediment bedform found in rivers and marine environments that migrates upstream.
antielectron
nounC2
/ˌæn.ti.ɪˈlek.trɒn/The elementary particle that is the antiparticle of the electron, possessing the same mass but opposite electric charge and quantum numbers.
antiemetic
adjectivenounLow
/ˌantiɪˈmɛtɪk/A medicine that prevents or relieves nausea and vomiting.
antienzyme
nounVery Low
/ˌæntiˈenzaɪm/A substance that inhibits or counteracts the action of an enzyme.
antiestablishmentarian
adjectivenounVery low (obscure/rare)
/ˌæn.ti.ɪˌstæb.lɪʃ.mənˈteə.ri.ən/a person who opposes the establishment, the existing social, political, or economic order.
antiestablishmentarianism
nounC2
/ˌæn.ti.ɪˌstæb.lɪʃ.mənˈteə.ri.ə.nɪ.zəm/Opposition to the established social, political, and religious order.
antietam
nounC2 (Very Low Frequency)
/ænˈtiːtəm/A proper noun referring to the Antietam Creek in Maryland, USA, and specifically the major Civil War battle fought near it in 1862.
antifa
nounC1/C2
/ˈæn.ti.fɑː/ or /ænˈtiː.fə/A political movement or ideology characterized by militant opposition to fascism and far-right extremism.
antifebrile
adjectivenounLow / Obscure
/ˌantɪˈfiːbrʌɪl/Substance or agent that reduces or prevents fever.
antifebrin
nounVery Low
/ˌæntiˈfɛbrɪn/A chemical compound used historically as an antipyretic (fever-reducing) drug.
antifederal party
nounC2 (Very Low Frequency)
/ˌæntiˈfed(ə)rəl ˈpɑːti/A political group opposing the creation or consolidation of a strong central (federal) government, advocating for greater power to individual states or regions.
antifederalist
nounLow
/ˌæn.tiˈfed.ər.əl.ɪst/A person who opposed the ratification of the United States Constitution in the late 1780s, advocating for stronger state governments and fearing a powerful central government.
antifeedant
nounC2
/ˌantɪˈfiːd(ə)nt/A substance that deters pests or animals from feeding on plants or materials.
antiferromagnet
nounVery low
/ˌantɪˌfɛrə(ʊ)ˈmaɡnɪt/A material in which neighbouring magnetic moments (e.g., from atoms or ions) are aligned in opposite directions, resulting in no net macroscopic magnetization in the absence of an external magnetic field.
antiferromagnetism
nounC2
/ˌæntiˌferəʊˈmæɡnɪtɪzəm/A physical phenomenon where adjacent magnetic moments (spins) in a material align in opposite directions, resulting in zero net magnetization.
antifoggant
nounVery low
/ˌæntiˈfɒɡənt/A chemical substance added to photographic film, plates, or other materials to prevent the formation of fog, which is unintended light exposure or density.
antifogger
nounLow
/ˈæn.tiˌfɒɡ.ə/A substance, agent, or treatment applied to prevent condensation (fog) from forming on a surface, such as on glass, lenses, or visors.
antiforeignism
nounRare
/ˌæntɪˈfɒrɪnɪzəm/The policy or belief in opposition to foreign influence, people, or customs.

Showing 5461–5480 of 8734 words.