English Words Starting With E

• expansion wave

  nounC1
  /ɪkˈspænʃən ˌweɪv/A rapid outward-moving disturbance or pattern of growth, increase, or extension, particularly one that spreads from a central point.
• expansionism

  nounLow-to-Mid (C1-C2 vocabulary)
  /ɪkˈspæn.ʃə.nɪ.zəm/A policy or ideology of increasing a state's territory, power, or influence, typically by extending its control over other territories, peoples, or markets.
• expansive bit

  nounC2
  /ɪkˈspænsɪv bɪt/A drill bit with adjustable cutters that can be set to bore holes of various diameters.
• expansive classification

  nounC1/C2
  /ɪkˈspænsɪv ˌklæsɪfɪˈkeɪʃən/A broad, inclusive, and detailed system for categorizing items or concepts, often covering many categories or allowing for growth.
• expansivity

  nounC2
  /ˌɛkspænˈsɪvɪti/The quality or state of being expansive; a tendency to expand or cover a wide area.
• expat

  nounC1
  /ˌeksˈpæt/A person who lives outside their native country.
• expatiate

  verbverb-intransitiveC2 (Very low frequency, highly formal or literary)
  /ɪkˈspeɪʃɪeɪt/To speak or write in great detail or at length about a subject.
• expatriate

  adjectivenounverbverb-intransitiveverb-transitiveC1
  /ˌeksˈpæt.ri.eɪt/ (noun/adj), /ekˈspeɪ.tri.eɪt/ (verb)A person who lives outside their native country, often long-term or permanently.
• expect

  verbverb-transitiveB1
  /ɪkˈspɛkt/To regard something as likely to happen or to regard someone as likely to do something.
• expectancy

  nounC1
  /ɪkˈspɛktənsi/The state of expecting or anticipating something to happen.
• expectant

  adjectivenounC1
  /ɪkˈspek.tənt/Having or showing an excited feeling that something is about to happen, especially something pleasant.
• expectation

  nounC1
  /ˌɛk.spɛkˈteɪ.ʃən/A strong belief that something will happen or be the case in the future.
• expectation of life

  nounB2
  /ˈlaɪf ɪkˌspɛk.tən.si/The average number of years a person is expected to live based on statistical analysis of demographic factors like birth year, current age, and other variables.
• expectation sunday

  nounC1
  /ˌɛkspɛkˈteɪʃ(ə)n/A belief or strong hope that something will happen or is likely to happen.
• expectation week

  nounLow (Specialist/Professional)
  /ˌɛkspekˈteɪʃən wiːk/A specific period (typically a week) of anticipation and forecast, often used in business, education, or events planning.
• expected frequency

  nounLow (primarily technical/academic)
  /ɪkˈspɛktɪd ˈfriːkwənsi/The anticipated or predicted rate at which something occurs or is likely to occur.
• expected utility

  nounLow (C2/Technical)
  /ɪkˈspɛktɪd juːˈtɪlɪti/In decision theory and economics, a mathematical calculation of the average or mean outcome of a choice, weighted by the probability of each possible outcome, and evaluated according to the desirability (utility) of those outcomes.
• expected value

  nounLow frequency in general discourse; high frequency in mathematics, statistics, finance, gambling, and certain scientific/engineering fields.
  /ɪkˈspɛktɪd ˈvæljuː/The predicted average outcome of a random variable over many trials, calculated as the probability-weighted sum of all possible values.
• expectorant

  adjectivenounC1
  /ɪkˈspek.tər.ənt/A medicine that helps to bring up phlegm from the lungs and air passages, making it easier to cough it out.
• expectorate

  verbverb-intransitiveverb-transitiveLow
  /ɪkˈspɛktəreɪt/to cough or spit phlegm or mucus from the throat or lungs out of the mouth.

Showing 4461–4480 of 4896 words.