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.
Choose your level
View all levels
28 words
stereo
C2
/ˈsteriˌoʊ/
a sound system that records or reproduces audio through two or more separate channels
sentinel
C2
/ˈsɛn.tɪ.nəl/
a guard or watchman posted to keep lookout
res
C2
/rɛz/
informal: resolution or image detail, especially in high-res and low-res
emulate
C2
/ˈɛm.jə.leɪt/
To copy or imitate someone, especially because you admire them.
dogma
C2
/ˈdɔɡ.mə/
a doctrine or code of beliefs accepted as authoritative
parameter
C2
/pəˈɹæm.ə.tɚ/
A factor or limit that defines or sets the boundaries of something.
kodak
C2
/ˈkoʊdæk/
a camera, especially a small hand camera (historical generic use of the trademark)
biometric
C2
/ˌbaɪ.oʊˈmɛt.ɹɪk/
using measurable physical or behavioral characteristics to identify a person
electrode
C2
/ˌɪˈlɛktroʊd/
A conductor through which electric current enters or leaves a device, liquid, or circuit.
macro
C2
/ˈmæk.ɹoʊ/
a saved instruction or abbreviation that expands into a longer sequence of computer commands
bloat
C2
/bloʊt/
unnecessary size, complexity, or excess, especially in software or organizations
daemon
C2
/ˈdiːmən/
a computer program or process that runs in the background and performs a service without direct user control
facsimile
C2
/fækˈsɪməli/
An exact copy or reproduction of something.
monolith
C2
/ˈmɑn.əˌlɪθ/
a large single block of stone, especially one used as a monument
lurker
C2
/ˈlɝ.kɚ/
a person who reads or observes an online community without posting or participating
stylus
C2
/ˈstaɪ.ləs/
a pen-shaped device used to write, draw, or select items on a touchscreen or graphics tablet
mixin
C2
/ˈmɪksɪn/
a reusable unit of behavior or methods that can be included in a class without ordinary single inheritance
exfiltrate
C2
/ˈɛksfɪltɹeɪt/
to covertly remove data from a computer system or network
hypertext
C2
/ˈhaɪpɚtekst/
digital text containing links that let a reader move non-sequentially between related passages or documents
corrugator
C2
/ˈkɔɹ.əˌɡeɪ.tɚ/
A machine that corrugates material.
accessor
C2
/ˈækˌsɛsɚ/
a method or function that reads a value, usually without changing the underlying data
namespace
C2
/ˈneɪmspeɪs/
a named scope that groups identifiers so they do not conflict with identical names elsewhere
crufty
C2
/ˈkrʌfti/
poorly designed or inelegant, often referring to software or code
multiplexer
C2
/ˈmʌltəˌplɛksər/
an electronic device that selects one of several input signals to send to a single output
quine
C2
/kwaɪn/
a self-replicating program or statement that outputs its own source code
reticulate
C2
/rəˈtɪkjəlɪt/
forming or resembling a network; having a net-like structure
microservice
C2
/ˈmaɪkroʊˌsɝvɪs/
a small independently deployed software service that communicates with other services as part of a larger system
visiplate
C2
/ˈvɪz.iˌpleɪt/
in science fiction, an electronic screen capable of displaying images or data