English Vocabulary
Pick a CEFR level (A1–C2) — A1 is the friendliest place to start — and browse its words grouped by topic: travel, food, the body, emotions, and more. Each word shows its meaning, example sentences, and US/UK pronunciation.
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39 words
vital
B2
/ˈvaɪtəl/
Extremely important; essential.
evolution
B2
/ˌɛvəˈluʃ(ə)n/
The gradual process by which something changes and develops over time.
beta
B2
/ˈbeɪtə/
preliminary or testing stage of a software or hardware product
gamma
B2
/ˈɡæ.mə/
the 3rd letter of the Greek alphabet
cellular
B2
/ˈsɛl.ju.lɚ/
characterized by or divided into or containing cells or compartments (the smallest organizational or structural unit of an organism or organization)
blooming
B2
/ˈbluːmɪŋ/
Producing flowers; in flower.
meteorite
B2
/ˈmiːtiəˌraɪt/
a piece of rock or metal from space that survives passage through an atmosphere and reaches the ground
scientifically
B2
/ˌsɑe.ənˈtɪfɪkli/
From the point of view of science.
lifeless
B2
/ˈlaɪfləs/
Dead, or appearing to be dead.
ether
B2
/ˈi.θɚ/
a substance once thought to fill space and carry light or electromagnetic waves
ion
B2
/ˈaɪ.ɑn/
an atom or group of atoms with a positive or negative electrical charge because it has lost or gained electrons
relativity
B2
/ɹɛl.əˈtɪv.ɪ.ti/
(physics) The scientific theory that space and time are not fixed but depend on the observer's motion.
supernova
B2
/ˌsuː.pɚˈnoʊ.və/
an extremely energetic stellar explosion that makes a star suddenly become vastly more luminous
neutron
B2
/ˈnu.tɹɑn/
an elementary particle with 0 charge and mass about equal to a proton
telepathic
B2
/ˌtɛlɪˈpæθɪk/
communicating without apparent physical signals
regeneration
B2
/riːˈdʒɛnɝˈeɪʃən/
Rebuilding or restructuring; large scale repair or renewal; revitalisation.
wavelength
B2
/ˈweɪvˌlɛŋ(k)θ/
a shared orientation leading to mutual understanding
reproductive
B2
/ˌɹiːpɹəˈdʌktɪv/
producing new life or offspring
catalyst
B2
/ˈkæt.ə.lɪst/
Something or someone that causes an important change or event to happen.
digestion
B2
/daɪˈd͡ʒɛst͡ʃən/
learning and coming to understand ideas and information
enzyme
B2
/ˈɛn.zaɪm/
a protein or RNA molecule that catalyzes a biochemical reaction without being consumed by it
decomposition
B2
/ˌdiːkəmpoʊˈzɪʃən/
The process of rotting and breaking down, caused by bacteria or fungi.
subatomic
B2
/ˌsʌbəˈtɑːmɪk/
of or relating to constituents of the atom or forces within the atom
vigorously
B2
/ˈvɪɡəɹəsli/
With great energy, force, or determination.
hydraulics
B2
/haɪˈdrɑː.lɪks/
the science and engineering of liquids in motion and their use to transmit force
beaker
B2
/ˈbiː.kɚ/
a straight-sided, flat-bottomed laboratory container, usually with a pouring lip
enthusiastically
B2
/ɪnˌθuːziːˈæstɪkli/
In a way that shows great excitement and interest.
naturalist
B2
/ˈnætʃɝələst/
a biologist knowledgeable about natural history (especially botany and zoology)
carbonate
B2
/ˈkɑːrbənət/
a salt or ester of carbonic acid, typically containing the carbonate ion CO3^2-
gaseous
B2
/ˈɡæsiəs/
existing in the physical state of a gas rather than a solid or liquid
evaporation
B2
/ɪˌvæpəˈreɪʃən/
the process by which a liquid changes into a gas, especially at its surface
biotechnology
B2
/ˌbaɪoʊˌtɛkˈnɑːlədʒi/
The use of living things, such as cells or bacteria, to make medicines, foods, and other useful products.
morphology
B2
/mɔɹˈfɑ.lə.d͡ʒi/
the branch of biology that deals with the structure of animals and plants
newtonian
B2
/nuˈtoʊniən/
relating to Isaac Newton, his scientific work, or the laws and methods derived from it
experimenter
B2
/ɪkˈsper.əˌmen.tɚ/
a scientist or researcher who conducts an experiment
interbreeding
B2
/ˌɪntɚˈbriːdɪŋ/
reproduction between animals or plants from different populations, breeds, varieties, or closely related species
irradiation
B2
/ɪˌreɪ.diˈeɪ.ʃən/
the process of exposing a person, organism, food, or material to ionizing radiation
unfertilized
B2
/ʌnˈfɝːtəlaɪzd/
biology: not fertilized by the fusion of male and female reproductive cells
hybridism
B2
/ˈhaɪbrɪdɪzəm/
the production of hybrids by crossing different species, varieties, or breeds