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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)

allopolyploid
adjectivenounC2 / Very Low
/ˌæləʊˈpɒlɪplɔɪd/An organism or cell that contains two or more complete sets of chromosomes derived from different species.
allopurinol
nounlow
/ˌalə(ʊ)ˈpjʊərɪnɒl/A drug used to treat gout and certain types of kidney stones by reducing uric acid production.
allosaur
nounLow-frequency / Specialized
/ˈæl.ə.sɔː/A large carnivorous dinosaur of the Jurassic period, belonging to the family Allosauridae.
allostasis
nounLow
/ˌælə(ʊ)ˈsteɪsɪs/The process by which the body achieves stability through physiological or behavioral change in response to internal or external stressors.
allot
verbverb-transitiveC1
/əˈlɒt/To give or assign something (such as a share, portion, or amount) to someone as their official or designated part.
allotee
nounRare
/əˌlɒˈtiː/A person to whom something is allotted, especially a plot of land or housing.
allotment
nounB2
/əˈlɒtmənt/A small piece of land rented by an individual, typically from a local authority, for growing vegetables and flowers.
allotransplant
nounC2
/ˌæləʊˈtræns.plɑːnt/A surgical procedure in which tissue or an organ is transferred from one individual to another of the same species.
allotrope
nounC2
/ˈæl.ə.trəʊp/A structurally distinct form of a pure chemical element, where atoms are bonded together in a different manner.
allotropy
nounC2
/əˈlɒtrəpi/The property of a chemical element (like carbon, sulfur, or iron) to exist in two or more different physical forms or structures in the same physical state (solid, liquid, gas).
allotted
adjectiveverbC1
/əˈlɒt.ɪd/To have assigned or distributed something, especially a share, time, or task, as part of an official or planned division.
allottee
nounC1
/əˌlɒtˈiː/A person or entity to whom something, especially a share or a plot of land, is officially allocated.
allotype
nounC2
/ˈælə(ʊ)taɪp/A variant form of a biological molecule (especially an antibody) that differs between individuals of the same species due to genetic differences.
allover
adjectivenounB1
/ˌɔːlˈəʊvə/An adjective describing something that covers an entire surface or object uniformly.
allow
verbverb-intransitiveverb-transitiveHigh
/əˈlaʊ/To give permission for something to happen or to let someone do something.
allowable
adjectivenounC1
/əˈlaʊəbl̩/Permitted or acceptable according to rules, laws, or established limits.
allowable cut
nounC1
/əˈlaʊəbl̩ ˈkʌt/The maximum permitted amount of timber that can be harvested from a forest area over a specified period, as regulated by sustainable forestry practices.
allowance
nounverbverb-transitiveB1
/əˈlaʊəns/A sum of money granted or given regularly for a specific purpose, often to a child by parents or to an employee for expenses.
allowance race
nounC2
/əˈlaʊəns reɪs/A horse race in which the weight each horse must carry is adjusted according to its past performance, age, or sex.
alloway
nounVery Low
/ˈæləweɪ/A proper noun referring primarily to a village and parish in South Ayrshire, Scotland, historically famous as the birthplace of poet Robert Burns and the setting of his poem "Tam o' Shanter".

Showing 3361–3380 of 8734 words.