These are words 51 to 75 of the top 400 words of the New Academic Word List: words that appear again and again in university texts and in the Academic IELTS Reading and Writing tasks. For each word, read the example, try to guess the meaning, then reveal it and mark honestly how you did. Then say the word aloud, record yourself and compare it with the model voice. When you have finished, try the gap quiz and save your results.
The New Academic Word List was compiled by Charles Browne, Brent Culligan and Joseph Phillips (2013) from academic texts, and its words are ranked by the authors. We teach the top 400 in rank order. How the list was made
Nothing here is marked by a computer. You decide how well you knew each word and how it sounded. Your recordings stay in your browser: they are not uploaded and they are lost when you close the page. Your place and your answers are kept in this browser; sign in (free) at the end to keep them on every device.
The words
51
statistical
adjective
Statistical tests showed a clear pattern.
collocationsstatistical analysis · statistical data · a statistical test
connected with numbers collected and studied to show a pattern
Watch out: Statistics (the subject) takes a singular verb. Statistics (numbers) takes a plural verb.
Did you guess it?
How did that sound?
52
vowel
noun
The word cat has a short vowel.
collocationsa short vowel · a long vowel · vowel sound
a speech sound made without blocking the air, such as a, e, i, o, u
Watch out: Vowel is a sound, not a letter. Letters are a, e, i, o, u.
Did you guess it?
How did that sound?
53
equilibrium
noun
Prices reach equilibrium when supply meets demand.
collocationsreach equilibrium · in equilibrium · market equilibrium
a state of balance between opposing forces
Watch out: Say it in five syllables, with the stress on lib.
Did you guess it?
How did that sound?
54
intensity
noun
The intensity of the light hurt my eyes.
collocationshigh intensity · the intensity of · intensity of feeling
the strength or force of something
Watch out: The adjective is intense. Do not say intensive for feelings.
Did you guess it?
How did that sound?
55
regression
noun
Regression was used to predict house prices.
collocationsregression analysis · linear regression · a regression model
a statistical method of predicting one value from another, or a move back to an earlier state
Watch out: The second meaning is a return to an earlier, worse state.
Did you guess it?
How did that sound?
56
diagnosis
noun
An early diagnosis can save lives.
collocationsmake a diagnosis · an early diagnosis · a correct diagnosis
a doctor's decision about what illness a person has
Watch out: The plural is diagnoses, and the verb is diagnose.
Did you guess it?
How did that sound?
57
identification
noun
Please show identification at the door.
collocationsproof of identification · early identification · identification of
the act of recognising someone or something, or a document that proves who you are
Watch out: Identification is not the same as identity.
Did you guess it?
How did that sound?
58
node
noun
Each computer is a node in the network.
collocationsa network node · lymph node · a node in
a point where lines meet in a network, or a small swelling in the body
Watch out: A node is a connection point.
Did you guess it?
How did that sound?
59
partial
adjective
The company made a partial payment.
collocationspartial payment · a partial view · partial success
not complete; only a part
Watch out: Be careful with partial and impartial. They are not opposites in meaning here.
Did you guess it?
How did that sound?
60
correlate
verb
Height and weight often correlate.
collocationscorrelate with · correlate strongly · closely correlate
to be connected so that when one thing changes, the other tends to change
Watch out: British spelling is behavioural. The American spelling is behavioral.
Did you guess it?
How did that sound?
67
consumption
noun
Energy consumption rises in winter.
collocationsenergy consumption · food consumption · consumption of
the amount of something that people use, eat or buy
Watch out: The verb is consume, not consumption.
Did you guess it?
How did that sound?
68
bilingual
adjective
A bilingual child may mix both languages.
collocationsbilingual education · a bilingual speaker · bilingual children
able to speak two languages well
Watch out: Bilingual can be an adjective or a noun.
Did you guess it?
How did that sound?
69
sensitivity
noun
Some people have a sensitivity to loud noise.
collocationssensitivity to · show sensitivity · cultural sensitivity
how easily something is affected, or the ability to understand others' feelings
Watch out: Sensitive can mean easily upset. It does not mean sensible.
Did you guess it?
How did that sound?
70
similarity
noun
There is a similarity between the two designs.
collocationsa similarity between · striking similarity · similarities and differences
the way in which two things are alike
Watch out: Say similarity between, not similarity of between.
Did you guess it?
How did that sound?
71
optimal
adjective
The optimal temperature for plants is warm.
collocationsoptimal conditions · optimal results · an optimal solution
best or most suitable
Watch out: Optimal is formal for the best possible.
Did you guess it?
How did that sound?
72
explicit
adjective
The rules are explicit and easy to follow.
collocationsexplicit instructions · explicit rules · make it explicit
stated clearly and in detail, so there is no doubt
Watch out: Explicit is the opposite of implicit.
Did you guess it?
How did that sound?
73
mutation
noun
A mutation in one gene caused the disease.
collocationsa genetic mutation · gene mutation · undergo a mutation
a change in a gene that can pass to later generations
Watch out: The verb is mutate: the virus mutated.
Did you guess it?
How did that sound?
74
colonial
adjective
Many buildings date from the colonial period.
collocationscolonial rule · colonial period · colonial history
connected with a country that rules another land as a colony
Watch out: Do not confuse colonial with colony.
Did you guess it?
How did that sound?
75
spectrum
noun
White light splits into a spectrum of colours.
collocationsa wide spectrum · the colour spectrum · across the spectrum
a range of different things, such as colours or opinions
Watch out: The plural is spectra.
Did you guess it?
How did that sound?
Gap quiz
Each sentence has one gap. Drag a word into the gap, or tap a word and then tap the gap. The words are the ones you have just practised, and some of them have changed shape (for example, is or made).
The analysis of the survey used averages and tests to find patterns in the numbers.
In the word cat, the letter a stands for a short sound.
When supply and demand are equal, the market reaches and prices stop changing.
The of the light was so strong that I had to close my eyes.
Researchers used to predict exam scores from hours of study, drawing a line of best fit.
The doctor's was that the patient had a viral infection, not a bacterial one.
Please show some form of , such as a passport, when you enter the building.
In a network diagram, each point where several lines meet is called a .
She paid only a amount of the bill, so she still owes some money.
Hours of study with exam success, because both tend to rise together.
Infant fell sharply as hospitals improved and more babies survived.
The body makes an to fight each particular germ that enters the blood.
The story is told in strict order, starting with the first event and ending with the last.
A single of dust floated in the sunlight and then disappeared.
The of the film, from the first scene to the last, is two hours.
The study looked at patterns, such as how children act and react in class.
Energy rises in winter because people use more heating and lighting.
A child speaks both English and Spanish easily at home.
Some people have a high to loud noise and cannot work in busy places.
The between the twins is so strong that even their teachers confuse them.
The best possible temperature for growing tomatoes is called the temperature.
The instructions were so clear and that nobody was confused, because every step was stated openly.
A sudden change in a single gene is called a , and it can pass to the next generation.
Many old buildings in the city date from the period, when a foreign power ruled the land.
White light splits into a of colours, from red at one end to violet at the other.
Your results
Words to work on first
Save your results
Your results are kept in this browser. Sign in to save them to your account; signing in is free.
Word list: New Academic Word List 1.2 by Charles Browne, Brent Culligan and Joseph Phillips (2013), licensed under CC BY-SA 4.0. The list gives the words and their order; the meanings, examples and exercises on this page are our own.