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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)

alopecia
nounLow
/ˌæl.əˈpiː.ʃə/The partial or complete absence of hair from areas of the body where it normally grows; hair loss.
alopecia areata
nounLow (Specialised/Technical)
/ˌæl.əˈpiː.ʃə ˌeə.riˈɑː.tə/An autoimmune condition causing sudden, patchy hair loss on the scalp or body.
alost
nounExtremely Rare / Archaic
/ə‿ˈlɒst/(archaic/dialectal) All lost; entirely lost, ruined, or destroyed. Usually functioning as a compound adjective.
alouette
nounLow
/ˌæl.uːˈet/A small passerine bird, the skylark (Alauda arvensis) or sometimes other similar birds, primarily known from the French-Canadian folk song.
aloysius
nounVery Low
/ˌæləʊˈɪʃəs/A male given name of Old German origin, associated with Saint Aloysius Gonzaga, and often used in a formal or historical context.
alp
nounLow
/alp/A high, rugged mountain or mountain peak, especially in the Swiss Alps.
alpaca
nounC1
/ælˈpæk.ə/A domesticated South American mammal related to the llama, valued for its soft, fine wool.
alpena
nounVery Low
/ælˈpiːnə/A specific proper noun, primarily a place name.
alpenglow
nounC1
/ˈalpəngləʊ/A reddish or rosy glow often seen on mountain peaks just before sunrise or after sunset.
alpenhorn
nounVery low
/ˈælpənˌhɔːn/A long wooden horn used traditionally in the Swiss Alps for communication and music.
alpenstock
nounLow
/ˈælpənstɒk/a strong, iron-tipped stick used by hikers and mountaineers, especially in the Alps.
alpes-de-haute-provence
nounC1
/ˌalp də ˌəʊt prɒˈvɒ̃s/A department in the Provence-Alpes-Côte d'Azur region of southeastern France, named for the Alpine mountains and the historical province of Haute-Provence.
alpes-maritimes
nounC2
/ˌalpˌmærɪˈtiːm/A department in the Provence-Alpes-Côte d'Azur region of southeastern France, encompassing the French Riviera and part of the Southern Alps.
alpha
adjectivenounC1
/ˈælfə/The first letter of the Greek alphabet (Α, α), used to denote the first in a series or the dominant/most important one.
alpha and omega
nounC2
/ˌælfə ən(d) ˈəʊmɪɡə/The beginning and the end; the first and last.
alpha blocker
nounC2
/ˈælfə ˌblɒkə/A type of drug that blocks alpha-adrenergic receptors, primarily used to treat high blood pressure and urinary symptoms of an enlarged prostate.
alpha brass
nounC2
/ˈælfə brɑːs/A type of brass alloy that has a high copper content (over 65%) and a specific crystalline structure (face-centered cubic).
alpha centauri
nounC1
/ˌælfə sɛnˈtɔːraɪ/The closest star system to the Solar System, consisting of three stars, including the sun-like Alpha Centauri A.
alpha centauri system
nounC1+
/ˌælfə senˈtɔːraɪ ˌsɪstəm/The star system located in the constellation Centaurus, closest to our Solar System, consisting primarily of the three stars Alpha Centauri A, Alpha Centauri B, and Proxima Centauri.
alpha decay
nounC1
/ˈælfə dɪˈkeɪ/A type of radioactive decay where an atomic nucleus emits an alpha particle, decreasing its atomic number by two and its mass number by four.

Showing 3481–3500 of 8734 words.