catalyst
A substance that increases the rate of a chemical reaction without being consumed in the process.
Dictionary · English 9,481
Vocabulary ranked by real-world frequency — start with the 1,000 most common words. Definitions adapted from Wiktionary (CC BY-SA 4.0), review in progress.
Tiếng Việt English Idioms & phrases →
Frequency: All Top 1,000 1,001–5,000
cedar
A coniferous tree of the genus Cedrus in the family Pinaceae.
cons
A data structure in Lisp that is a pair of pointers, car and cdr, used mainly for lists.
cruelty
An indifference to suffering or pleasure in inflicting suffering.
darwin
A unit of evolutionary change in evolutionary biology.
dementia
A progressive decline in cognitive function due to damage or disease in the brain beyond what might be expected from normal aging. Areas particularly affected include memory, attention, judgement, language and problem solving.
designation
An act or instance of designating
diploma
A document issued by an educational institution testifying that the recipient has earned a degree or has successfully completed a particular course of study.
dispatch
To send (a shipment) with promptness.
disputed
Argued; not certain, agreed upon, or accepted.
dots
A punctuation mark consisting of three dots, indicating an omission of some text or a sentence which wasn't fully finished, an ellipsis.
duchess
The wife or widow of a duke.
dunno
An utterance of the word dunno.
extinction
The action of making or becoming extinct; annihilation.
FOIL
To apply the FOIL algorithm to.
geology
The science that studies the structure of the Earth (or other planets), together with its origin and development, especially by examination of its rocks.
gram
A unit of mass equal to one-thousandth of a kilogram. Symbol: g.
hair-splitting
Excessively precise or petty argumentation
heath
A tract of level uncultivated land with sandy soil and scrubby vegetation; heathland.
heavenly
Of or pertaining to Heaven, the eternal celestial abode of God or the gods.
hormones
Hormone replacement therapy.
horrific
Causing horror; horrifying.
Hugo
A Hugo Award, a statuette given out by the World Science Fiction Society.
infants
The section of a primary school for the education of younger children, typically the classes of reception or kindergarten and years (grades) one and two.
insect
An arthropod (in the Insecta class) characterized by six legs, up to four wings, and a chitinous exoskeleton.
iris
A plant of the genus Iris, common in the northern hemisphere, and generally having attractive blooms (See Iris (plant) on Wikipedia.Wikipedia ).
issuing
The act by which something is issued.
locking
The use of a lock or a mutex to restrict access to a part of the code to at most one process.
logging
An act or instance of logging (cutting down trees).
mentality
A mindset; a way of thinking; a set of beliefs.
metre
The basic unit of length in the International System of Units (SI: Système International d'Unités), equal to the distance travelled by light in a vacuum in 1/299 792 458 seconds. The metre is equal to 39+⁴⁷⁄₁₂₇ (approximately 39.37) imperial inches.
Minecraft
To play the video game Minecraft.
neural
Of, or relating to the nerves, neurons or the nervous system.
newsletter
A periodically sent publication containing current events or the like, generally on a particular topic or geared toward a limited audience.
nineteenth
The ordinal form of the number nineteen.
nitrogen
The chemical element (symbol N) with an atomic number of 7 and atomic weight of 14.0067. It is a colorless and odorless gas.
ooh
An expression of surprise.
payroll
A list of employees who receive salary or wages, together with the amounts due to each.
phenomenal
Very remarkable; highly extraordinary; amazing.
Philippine
Of or pertaining to the Philippines.
photographic
Pertaining to photographs or photography.
ping
A high-pitched, short and somewhat sharp sound.
polished
Made smooth or shiny by polishing.
pots
A large quantity.
predictable
Able to be predicted.
prix
Synonym of prize.
professionally
As a professional; for one's paid career.
protesting
Protestation.
recycling
The practice of sorting and collecting waste materials for new use.
restriction
The act of restricting, or the state of being restricted.
resurrection
The act of arising from the dead and becoming alive again.
rover
One who roves: a person or animal that travels around, especially over a wide area, without a fixed destination; a nomad, a roamer, a wanderer.
shipment
A load of goods that is transported by any method (not just by ship).
spatial
Pertaining to (the dimension of) space.
stainless
Describing an alloy that is resistant to corrosion and discoloration.
statutory
Of, relating to, enacted or regulated by a statute.
stellar
Of, pertaining to, or characteristic of stars.
Stockholm
To suffer from Stockholm syndrome; to form an emotional bond or identification with one's captor or oppressor, also, to form such a bond with one's victim.
stubborn
Refusing to move or to change one's opinion; obstinate; firmly resisting; persistent in doing something.
Sussex
A British breed of dual-purpose chicken, reared both for its meat and for its eggs.
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