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)

astuteness
nounC1
/əˈstjuːtnəs/The quality of being able to understand situations and people well and use this knowledge to gain an advantage; shrewdness and perceptiveness.
astyanax
nounVery Low
/əˈstʌɪənaks/A proper noun, the name of the young son of the Trojan hero Hector and his wife Andromache in Homer's Iliad.
asuncion
nounLow (geographically specific proper noun)
/əˌsʊnsiˈɒn/The capital and largest city of Paraguay.
asur
nounVery Rare / Technical
/ˈæsʊə/ or /ˈæʃʊə/As a proper noun referring to the Ashur/Assur, the chief god of the ancient Assyrian pantheon and the name of the original capital city of Assyria.
asura
nounRare
/ˈʌsʊrə/A class of powerful, often malevolent, divine beings or demons in Hindu and Buddhist mythology, opposed to the benevolent devas.
aswan
nounLow (Proper noun, geographic reference)
/æsˈwɑːn/A city in southern Egypt, historically significant and a major administrative and tourist centre.
aswan high dam
nounC2
/ˌæs.wæn ˈhaɪ ˈdæm/A major embankment dam built across the Nile River in Aswan, Egypt, completed in 1970 to control flooding, provide irrigation water, and generate hydroelectric power.
asylee
nounLow
/ˌæs.ɪˈliː/A person who has fled their country and is seeking asylum in another country.
asylum
nounB2
/əˈsaɪ.ləm/A place of refuge or safety, or protection given by a state to someone who has fled their country as a political refugee.
asylum seeker
nounC1
/əˈsaɪ.ləm ˌsiː.kə/A person who has left their country and formally applied for asylum (protection) in another country, but whose application has not yet been decided.
asymmetric slow-wave sleep
nounVery Low
/ˌeɪ.sɪˈmet.rɪk ˌsləʊ weɪv ˈsliːp/A stage of non-REM sleep characterized by slow brain waves (delta waves) that is unevenly distributed between the two hemispheres of the brain.
asymmetric time
nounC1-C2 / Low
/ˌeɪ.sɪˈmet.rɪk taɪm/A time schedule or period that is not evenly balanced or equal on both sides; a schedule where one part is significantly longer, shorter, or different in nature than another.
asymmetric warfare
nounC1/C2
/ˌeɪ.sɪˈmet.rɪk ˈwɔː.feər/A conflict between parties of unequal strength, where the weaker side uses unconventional tactics to exploit the vulnerabilities of the stronger side.
asymmetrical warfare
nounMedium
/ˌeɪ.sɪˈmet.rɪ.kəl ˈwɔː.feər/Military conflict between parties of significantly unequal power, resources, or capabilities.
asymmetry
nounC1
/eɪˈsɪm.ɪ.tri/A lack or absence of symmetry; where two sides or parts are not equal or identical in size, shape, or arrangement.
asymptote
nounC1
/ˈæsɪm(p)təʊt/A line that a curve approaches but never touches or intersects.
asymptotic freedom
nounVery Rare / Technical
/ˌæsɪmpˈtɒtɪk ˈfriːdəm/A property in quantum chromodynamics where the strong force between quarks becomes weaker as they get closer together.
asynapsis
nounVery Rare
/ˌeɪsɪˈnapsɪs/The failure of homologous chromosomes to pair during meiosis.
asynchronism
nounC1/C2
/eɪˈsɪŋkrənɪz(ə)m/The state or condition of not happening at the same time or rate; a lack of synchrony or temporal coordination.
asynchronous transmission
nounC1
/eɪˈsɪŋkrənəs trænzˈmɪʃən/A method of data transmission where data is sent at irregular intervals without a shared timing signal between sender and receiver.

Showing 7621–7640 of 8734 words.