English Words Starting With A

• actinopod

  nounVery low / Technical
  /akˈtɪn.ə.pɒd/A protozoan of the group Actinopoda, characterized by slender, radiating pseudopodia.
• actinopterygian

  adjectivenounVery Low (C2/Technical)
  /ˌæktɪnəʊpˈtɛrɪdʒiən/A fish belonging to the class Actinopterygii, characterized by having fins supported by bony or horny rays (lepidotrichia) rather than fleshy, lobed fins.
• actinotherapy

  nounVery Low
  /ˌæktɪnəʊˈθerəpi/Medical treatment using light or other forms of radiation, especially ultraviolet light.
• actinouranium

  nounExtremely low
  /ˌaktɪnəʊjʊˈreɪnɪəm/A radioactive isotope of uranium, specifically uranium-235 (²³⁵U), used in nuclear reactors and weapons.
• actinozoan

  nounVery Low
  /ˌæktɪnəʊˈzəʊən/a marine animal of the class Anthozoa in the phylum Cnidaria, characterized by radial symmetry and polyp form, such as corals and sea anemones
• action

  adjectiveinterjectionnounverbA1
  /ˈakʃ(ə)n/The process of doing something or the act of taking steps to achieve a result.
• action at a distance

  nounC2
  /ˈæk.ʃən æt ə ˈdɪs.təns/A phenomenon where one object affects another without any apparent physical connection or contact between them.
• action figure

  nounC1
  /ˈæk.ʃən ˌfɪɡ.ər/A poseable toy character representing a hero, soldier, or other figure, often from film, comics, or television, designed for imaginative play involving battles or adventures.
• action grant

  nounC1-C2 / Low-Frequency Specialised
  /ˈæk.ʃən ˌɡrɑːnt/The specific act of granting or bestowing something, often formally or officially; a grant which is authorised to proceed to implementation.
• action line

  nounB2
  /ˈæk.ʃən ˌlaɪn/A direct telephone number or dedicated channel established for receiving calls and initiating immediate responses, often for reporting issues, seeking help, or making complaints.
• action painting

  nounC1/C2
  /ˈæk.ʃən ˈpeɪn.tɪŋ/A style of abstract painting in which paint is spontaneously dripped, splashed, or smeared onto the canvas, rather than being carefully applied, emphasizing the physical act of painting itself as part of the finished work.
• action potential

  nounC2
  /ˈækʃn pə(ʊ)ˈtɛnʃl/A short-lasting electrical impulse in a nerve or muscle cell, where the voltage across the membrane rapidly rises and falls, enabling communication.
• action replay

  nounC1
  /ˈækʃən ˌriːpleɪ/A broadcast recording of a short section of a sporting event, shown again immediately, typically in slow motion.
• action reporter

  nounLow (domain-specific)
  /ˈæk.ʃən rɪˌpɔː.tər/A person whose job is to investigate and report on consumer complaints, problems with local services, or issues of public concern, often for a television or radio programme, newspaper, or online media outlet.
• action stations

  interjectionplural-nounB2-C1
  /ˈæk.ʃən ˌsteɪ.ʃənz/A state of readiness for immediate action, especially in a military or emergency context.
• action verb

  nounB2
  /ˈæk.ʃən ˌvɜːb/A verb that expresses a physical or mental action performed by the subject of a sentence.
• actioner

  nounLow (Specialist)
  /ˈæk.ʃən.ə(r)/A film, typically of low or medium budget, with a plot driven primarily by physical action, fights, chases, and stunts.
• actis

  nounVery Low
  An uncommon or obsolete spelling variant of 'axis', referring to a central line around which something rotates or is symmetrical.
• actium

  nounC2
  /ˈak.tɪ.əm/A geographical location: a promontory and ancient town in western Greece, known as the site of the decisive naval battle in 31 BC.
• activate

  verbverb-intransitiveverb-transitiveB2
  /ˈæktɪveɪt/To make something start working or functioning; to set in motion.

Showing 1041–1060 of 8734 words.