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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)

arthroscope
nounC2/Technical
/ˈɑː.θrə.skəʊp/A surgical instrument consisting of a rigid tube with a lens and light source, used to examine and operate on the interior of a joint.
arthroscopy
nounC2
/ɑːˈθrɒs.kə.pi/A minimally invasive surgical procedure where a small camera (arthroscope) is inserted into a joint to examine or treat it.
arthrosis
nounC2
/ɑːˈθrəʊsɪs/A degenerative joint disease involving the breakdown of cartilage and underlying bone.
arthrospore
nounVery Low
/ˈɑːθrə(ʊ)spɔː/A specialized spore formed by the fragmentation of hyphal cells in certain fungi and bacteria.
arthur
nounLow
/ˈɑː.θə/A proper noun functioning as a given name, historically and in folklore referring to a legendary British king.
arthus' reaction
nounVery Low (Technical/Scientific)
/ˈɑː.təs riˈæk.ʃən/A type of local, inflammatory immune response caused by the formation of antigen-antibody complexes in tissues.
arti
nounC2 (Proficient User)
/ˈɑː.tiː/A Hindu ritual worship ceremony involving the offering of light (usually from a lamp) to a deity.
artic
nounC1
/ˈɑːtɪk/A large, heavy goods vehicle, specifically an articulated lorry (truck).
artichoke
nounC1
/ˈɑː.tɪ.tʃəʊk/A large, thistle-like plant cultivated for its edible flower head, consisting of a fleshy base (heart) and overlapping leaves (bracts).
article
nounverbverb-transitiveC1
/ˈɑːtɪk(ə)l/A piece of writing in a newspaper, magazine, or website that provides information, opinion, or analysis on a particular topic.
article numbering
nounC1/C2
/ˈɑːtɪk(ə)l ˈnʌmbərɪŋ/A system or process for assigning sequential or hierarchical numbers to individual articles or sections within a document, publication, or legal text.
article of faith
nounC1
/ˌɑː.tɪ.kəl əv ˈfeɪθ/A firmly held belief or principle, especially one central to a religious or ideological system.
articles of agreement
nounC1
/ˈɑːtɪkəlz əv əˈɡriːmənt/A formal, written document outlining the specific terms and conditions agreed upon by parties entering into a partnership, joint venture, or business arrangement.
articles of association
plural-nounLow
/ˈɑː.tɪ.kəlz əv əˌsəʊ.siˈeɪ.ʃən/A formal legal document, sometimes called a charter, that governs the internal operations and rules of a company or corporation.
articles of confederation
nounplural-nounC1+ / Uncommon
/ˈɑːtɪk(ə)lz əv kənˌfɛdəˈreɪʃ(ə)n/The first written constitution of the United States, adopted in 1781 and replaced by the current US Constitution in 1789.
articles of war
nounplural-nounC2
/ˌɑːtɪkəlz əv ˈwɔː/A formal code of military law, traditionally issued by a sovereign or legislature, governing the conduct of armed forces, especially during wartime.
articulate
adjectivenounverb+2C1
/ɑːˈtɪk.jə.leɪt/ (verb), /ɑːˈtɪk.jə.lət/ (adjective)To express an idea or feeling clearly and effectively in speech or writing; to pronounce words distinctly.
articulated joint
nounLow
/ɑːˌtɪk.jʊˈleɪ.tɪd dʒɔɪnt/A physical joint, particularly one between rigid components like bones or machinery parts, that is clearly connected and allows for movement.
articulated lorry
nounC1
/ɑːˌtɪk.jə.leɪ.tɪd ˈlɒr.i/A large goods vehicle consisting of a powered tractor unit pulling a separate semi-trailer connected by a pivoting joint (fifth wheel coupling).
articulated vehicle
nounC2
/ɑːˌtɪk.jə.leɪ.tɪd ˈviː.ɪ.kəl/A large vehicle consisting of two or more rigid sections linked by a pivoted joint, allowing the sections to pivot relative to each other.

Showing 7021–7040 of 8734 words.