opposite

https://tts.langeek.co/read?text=b3Bwb3NpdGU&hash=abbc09f4aecdf29d2093839e0f1d31c502e9f568&lang=en&cache-only=0&driver=googletts

antonym

https://tts.langeek.co/read?text=YW50b255bQ&hash=159272fa5efddeb92462486caa023f9dd3ed6d53&lang=en&cache-only=0&driver=googletts

A prefix is a type of affix that is added to the beginning of a base word or root to modify its meaning. Prefixes can change the meaning of the word in various ways, such as indicating negation, repetition, or degree. For example, the prefix "un-" can be added to the word "happy" to form "unhappy", which means not happy. Other examples include "redo", where the prefix "re-" indicates doing something again, and "preview", where "pre-" means before. Prefixes are important in word formation, allowing for the creation of new words and the expansion of vocabulary in many languages.

What is a "prefix"?

prefix

https://tts.langeek.co/read?text=cHJlZml4&hash=e667fdeefcfceba04d22fd5c53bc2cb46146133e&lang=en&cache-only=0&driver=googletts

reliable

https://tts.langeek.co/read?text=cmVsaWFibGU&hash=98667ec8f415502156a904790149a87b6f33620b&lang=en&cache-only=0&driver=googletts

credible

https://tts.langeek.co/read?text=Y3JlZGlibGU&hash=08e21a93fbd59fd8059708d04ce91f55829bde47&lang=en&cache-only=0&driver=googletts

probable

https://tts.langeek.co/read?text=cHJvYmFibGU&hash=938ba482e4ab91f1a1218033fea894a539e0c73b&lang=en&cache-only=0&driver=googletts

honest

https://tts.langeek.co/read?text=aG9uZXN0&hash=9e0287ec5903a5249b3f5c3d6a01c85dfc2bb5cb&lang=en&cache-only=0&driver=googletts

legal

https://tts.langeek.co/read?text=bGVnYWw&hash=27e7e0955a7e2119900a8ecf62b319aa43839323&lang=en&cache-only=0&driver=googletts

responsible

https://tts.langeek.co/read?text=cmVzcG9uc2libGU&hash=fa6ea91b6ad39bd2d9660d20e44f7ef66a60cbf3&lang=en&cache-only=0&driver=googletts

abused

https://tts.langeek.co/read?text=YWJ1c2Vk&hash=18422b34df9a93ab128126086ea5fc03758bdccd&lang=en&cache-only=0&driver=googletts

disused

https://tts.langeek.co/read?text=ZGlzdXNlZA&hash=51761b1288ed374ee8c75ada812a27b406fd9568&lang=en&cache-only=0&driver=googletts

unused

https://tts.langeek.co/read?text=dW51c2Vk&hash=0aee7203812f7cf9a3fea1444b644082199ccfe3&lang=en&cache-only=0&driver=googletts

to misuse

https://tts.langeek.co/read?text=dG8gbWlzdXNl&hash=7dbfa489ab2ed3c6717f30e94394b1c9b4d3cccf&lang=en&cache-only=0&driver=googletts

to overuse

https://tts.langeek.co/read?text=dG8gb3ZlcnVzZQ&hash=efdf5dfd726842b792aa0a3413c00c647715f584&lang=en&cache-only=0&driver=googletts

to underuse

https://tts.langeek.co/read?text=dG8gdW5kZXJ1c2U&hash=ae845679f7ea352c47317b642a754162a111dadf&lang=en&cache-only=0&driver=googletts

fake

https://tts.langeek.co/read?text=ZmFrZQ&hash=447472a07ecbae326a30ae6169a7a384b4b8e952&lang=en&cache-only=0&driver=googletts

to like

https://tts.langeek.co/read?text=dG8gbGlrZQ&hash=dcbb8c0d5760970749d9b53691e35161d9e224d8&lang=en&cache-only=0&driver=googletts

tiny

https://tts.langeek.co/read?text=dGlueQ&hash=202f36dbb879d59348fc7e155dca51ab1c45561f&lang=en&cache-only=0&driver=googletts

happiness

https://tts.langeek.co/read?text=aGFwcGluZXNz&hash=4fa714afbee3824f5272ed5d478b71bb694062c3&lang=en&cache-only=0&driver=googletts

guilty

https://tts.langeek.co/read?text=Z3VpbHR5&hash=56b8018e545b5a2e2361bc9eb91d187d044ae5ca&lang=en&cache-only=0&driver=googletts

safe

https://tts.langeek.co/read?text=c2FmZQ&hash=7d5ec1181169ccfc1bfe61e69bf67331757aed03&lang=en&cache-only=0&driver=googletts

to allow

https://tts.langeek.co/read?text=dG8gYWxsb3c&hash=b34308605c9dc7969b8fda0c4bdc17f490e3da1a&lang=en&cache-only=0&driver=googletts

to improve

https://tts.langeek.co/read?text=dG8gaW1wcm92ZQ&hash=374084ad6a662d63acb91747968e8ffc4850b822&lang=en&cache-only=0&driver=googletts

sincere

https://tts.langeek.co/read?text=c2luY2VyZQ&hash=ff337affe9e3c7dffb58d4c50cb30ac7238cca42&lang=en&cache-only=0&driver=googletts

success

https://tts.langeek.co/read?text=c3VjY2Vzcw&hash=8604302cab22a6a65d1945bc5988df63cbab04d5&lang=en&cache-only=0&driver=googletts

to mature

https://tts.langeek.co/read?text=dG8gbWF0dXJl&hash=d1894d13c92e42a73abdadeca078943df53b5e91&lang=en&cache-only=0&driver=googletts

to encourage

https://tts.langeek.co/read?text=dG8gZW5jb3VyYWdl&hash=72ca8ae85e31e422e8ad2b3175076a649c78a666&lang=en&cache-only=0&driver=googletts

generous

https://tts.langeek.co/read?text=Z2VuZXJvdXM&hash=35271dbae9a9d049951c4cd10dfd3455c97976a0&lang=en&cache-only=0&driver=googletts

to appear

https://tts.langeek.co/read?text=dG8gYXBwZWFy&hash=0cf3aab2bc0f4e52dc764087cca11c71b6659502&lang=en&cache-only=0&driver=googletts

tough

https://tts.langeek.co/read?text=dG91Z2g&hash=c633067a713ea5bed8aa7c02729ec7f8abd96d71&lang=en&cache-only=0&driver=googletts

clear

https://tts.langeek.co/read?text=Y2xlYXI&hash=3cab253d2318876e1b30e3dcd6fd7ab43c2471a1&lang=en&cache-only=0&driver=googletts

The origin of the phrase "clear conscience" can be traced back to Middle English and Old French. The word "conscience" comes from the Latin word "conscientia," which means "knowledge within oneself" or "moral consciousness. Additionally, the phrase may be used in the context of seeking forgiveness or seeking to make amends for past wrongdoings, as individuals strive to achieve a clear conscience by addressing their moral transgressions.

What is the origin of the idiom "clear conscience" and when to use it?

clear conscience

https://tts.langeek.co/read?text=Y2xlYXIgY29uc2NpZW5jZQ&hash=fddb04da539ecb5c78a9955463731cb512cda56e&lang=en&cache-only=0&driver=googletts

fair

https://tts.langeek.co/read?text=ZmFpcg&hash=ce80563a5393ff1789c765b437e0281411c4ef41&lang=en&cache-only=0&driver=googletts

hard

https://tts.langeek.co/read?text=aGFyZA&hash=9b27269317a417acdd5db676f0574d7ee70b5922&lang=en&cache-only=0&driver=googletts

A mattress is a large, flat piece of cushioning material designed to support the body while sleeping. It is typically filled with materials such as foam, innerspring coils, or a combination of both, and is covered in fabric or another soft material. Mattresses come in different sizes, such as twin, full, queen, and king, to fit various bed frames. The comfort level of a mattress can vary, with options ranging from firm to soft, depending on the type of filling and construction. Mattresses are essential for providing a comfortable and supportive sleep surface.

What is a "mattress"?

mattress

https://tts.langeek.co/read?text=bWF0dHJlc3M&hash=c0d03183213f28831064675d33965b29c47b92ef&lang=en&cache-only=0&driver=googletts

live

https://tts.langeek.co/read?text=bGl2ZQ&hash=f6dc45de3cec899ebef49e15f72b66437806ee57&lang=en&cache-only=0&driver=googletts

animal

https://tts.langeek.co/read?text=YW5pbWFs&hash=a1be827b601c6b0bc95e95dc30f849113fb5daec&lang=en&cache-only=0&driver=googletts

A concert is a live performance of music, typically held in a venue such as a theater, auditorium, or outdoor space. During a concert, musicians or bands perform a set of songs or pieces in front of an audience. Concerts can range from small, intimate gatherings to large-scale events featuring well-known artists. The experience often includes not only the performance of music but also visual and atmospheric elements that enhance the overall enjoyment of the event.

What is a "concert"?

concert

https://tts.langeek.co/read?text=Y29uY2VydA&hash=636bb7f397f54c6a110e34d96d885d5b206c05b7&lang=en&cache-only=0&driver=googletts

light

https://tts.langeek.co/read?text=bGlnaHQ&hash=7e1349ba92f453b9b54c679296ad9c6da4cdfc0b&lang=en&cache-only=0&driver=googletts

evidence

https://tts.langeek.co/read?text=ZXZpZGVuY2U&hash=d1719142af79369a5befe14b8e728ed22c577103&lang=en&cache-only=0&driver=googletts

fiction

https://tts.langeek.co/read?text=ZmljdGlvbg&hash=3c603ee753454b55c418b90ec1a3cfee133f0003&lang=en&cache-only=0&driver=googletts

bias

https://tts.langeek.co/read?text=Ymlhcw&hash=6cf236d026c15a1ad5834e28a6a29195df6a64e6&lang=en&cache-only=0&driver=googletts

fabrication

https://tts.langeek.co/read?text=ZmFicmljYXRpb24&hash=afce815f59bca6e63bea8d06b8af6812848a7cec&lang=en&cache-only=0&driver=googletts

real

https://tts.langeek.co/read?text=cmVhbA&hash=c4a4765efd0df6c34a6783615110fc664788d39b&lang=en&cache-only=0&driver=googletts

bogus

https://tts.langeek.co/read?text=Ym9ndXM&hash=90bb5ea3201b137219f926dfaaf081c7cbf1511e&lang=en&cache-only=0&driver=googletts

accurate

https://tts.langeek.co/read?text=YWNjdXJhdGU&hash=c5b085f3b07b40a5efba50be48ec9da58453c312&lang=en&cache-only=0&driver=googletts

doubtful

https://tts.langeek.co/read?text=ZG91YnRmdWw&hash=e840d4a0d15d6759946bb670ee14ba57a5a3da21&lang=en&cache-only=0&driver=googletts

fact

https://tts.langeek.co/read?text=ZmFjdA&hash=7a07bb1d63418f7cda9151c2ffa4014d48883705&lang=en&cache-only=0&driver=googletts

fantasist

https://tts.langeek.co/read?text=ZmFudGFzaXN0&hash=a38b9b2402b327b5ca33b6e9c5a3782789cdc45c&lang=en&cache-only=0&driver=googletts

exaggeration

https://tts.langeek.co/read?text=ZXhhZ2dlcmF0aW9u&hash=31b69ba582f7cc62839aacf524f757decdc52075&lang=en&cache-only=0&driver=googletts

prejudice

https://tts.langeek.co/read?text=cHJlanVkaWNl&hash=b447ae0853eda60e99eeb3ac0f7544b8d52b41e4&lang=en&cache-only=0&driver=googletts

conspiracy theory

https://tts.langeek.co/read?text=Y29uc3BpcmFjeSB0aGVvcnk&hash=449232fd637ba8578aa5cf1171f3ab39e9e4694c&lang=en&cache-only=0&driver=googletts

lousy

https://tts.langeek.co/read?text=bG91c3k&hash=4198a4347afbae206e3d7bfdc304d3980327e8fd&lang=en&cache-only=0&driver=googletts

tropical

https://tts.langeek.co/read?text=dHJvcGljYWw&hash=91d83522742a78dcb93d154b0aeda4dc02668861&lang=en&cache-only=0&driver=googletts

awful

https://tts.langeek.co/read?text=YXdmdWw&hash=728a61491296955c40fe7cdb9871deeeaf744531&lang=en&cache-only=0&driver=googletts

delicious

https://tts.langeek.co/read?text=ZGVsaWNpb3Vz&hash=3ae80f31e20155fc362d0542a0a8e52826a7588b&lang=en&cache-only=0&driver=googletts

small

https://tts.langeek.co/read?text=c21hbGw&hash=1ac18a42c9103ea76f08f04fc04eb2464c6197fd&lang=en&cache-only=0&driver=googletts

boring

https://tts.langeek.co/read?text=Ym9yaW5n&hash=b2b4e75af7af9572cac6cad9ade4b085717fe5df&lang=en&cache-only=0&driver=googletts

stale

https://tts.langeek.co/read?text=c3RhbGU&hash=bbe205de627f2e9aad780c4f9a2872948bcb9425&lang=en&cache-only=0&driver=googletts

stingy

https://tts.langeek.co/read?text=c3Rpbmd5&hash=62ac8c9d85753cc5c716a97d6b1538802683c703&lang=en&cache-only=0&driver=googletts

how come

https://tts.langeek.co/read?text=aG93IGNvbWU&hash=e35689e8092f657f0f48f322be22a27e967d099a&lang=en&cache-only=0&driver=googletts

vegetarian

https://tts.langeek.co/read?text=dmVnZXRhcmlhbg&hash=c8ca20674bb04bbfa0e424ab6fa6cbcfc6ccb076&lang=en&cache-only=0&driver=googletts

vegan

https://tts.langeek.co/read?text=dmVnYW4&hash=cd6622f7f03ea1125ebefda2f673994c56d28f5c&lang=en&cache-only=0&driver=googletts

insomniac

https://tts.langeek.co/read?text=aW5zb21uaWFj&hash=6def704eb4002b5600ce5c9aa6f3e5c099b6b411&lang=en&cache-only=0&driver=googletts

teetotaler

https://tts.langeek.co/read?text=dGVldG90YWxlcg&hash=0fbd82fbc77174b0e1676b4fc23a2807d41c46fc&lang=en&cache-only=0&driver=googletts

pacifist

https://tts.langeek.co/read?text=cGFjaWZpc3Q&hash=e564b15cb84d21a18a5b6b346d815988a0b276af&lang=en&cache-only=0&driver=googletts

atheist

https://tts.langeek.co/read?text=YXRoZWlzdA&hash=0af3167da63a4eb8324b16f64905b6b52569aa0e&lang=en&cache-only=0&driver=googletts

xenophobe

https://tts.langeek.co/read?text=eGVub3Bob2Jl&hash=4373ad4ec53320947e63d5acbcebedddc8fadbfd&lang=en&cache-only=0&driver=googletts

anti-royalist

https://tts.langeek.co/read?text=YW50aS1yb3lhbGlzdA&hash=7c086bfd251a8d8827606489e743b1cf5f51a054&lang=en&cache-only=0&driver=googletts

technophobe

https://tts.langeek.co/read?text=dGVjaG5vcGhvYmU&hash=7b90cb1534773dbd1419d7ca6e5a57d138af29b5&lang=en&cache-only=0&driver=googletts

environmentalist

https://tts.langeek.co/read?text=ZW52aXJvbm1lbnRhbGlzdA&hash=550f787ea19f5f876174cf7b0325b4f18e5fb13a&lang=en&cache-only=0&driver=googletts

hypocrite

https://tts.langeek.co/read?text=aHlwb2NyaXRl&hash=2a1f31f8b49ce370a0e5317a33fcbf9a40dd78cd&lang=en&cache-only=0&driver=googletts

Here you will find the vocabulary from Unit 4 in the Headway Upper Intermediate coursebook, such as "credible", "disused", "fabrication", etc.

Headway Upper Intermediate "第四单元" 词汇