These are words 101 to 125 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
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The words
101
syllable
noun
The word water has two syllables.
collocationsa stressed syllable · one syllable · the last syllable
a single unit of sound in a word, with one vowel sound
Watch out: Count the vowel sounds to count the syllables.
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102
chromosome
noun
Humans have twenty-three pairs of chromosomes.
collocationsa sex chromosome · X chromosome · chromosome pair
a thread-like structure in a cell that carries genes
Watch out: Say the first syllable like crow.
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103
infect
verb
The virus can infect healthy cells.
collocationsinfect with · infect the lungs · easily infected
to pass a germ or disease to a person, animal or plant
Watch out: Infect needs an object: the virus infects people.
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104
magnetic
adjective
A compass needle follows the magnetic field.
collocationsmagnetic field · magnetic force · magnetic tape
having the power to attract iron, or connected with magnets
Watch out: Magnetic can also mean very attractive: a magnetic personality.
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105
configuration
noun
Choose the best configuration for the network.
collocationsa basic configuration · system configuration · the configuration of
the way the parts of something are arranged
Watch out: Say it with the stress on the ra syllable: con-fig-u-RA-tion.
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106
numerical
adjective
The data were numerical, not descriptive.
collocationsnumerical data · numerical order · numerical value
expressed in numbers, or connected with numbers
Watch out: Numerical order means in the order of numbers: 1, 2, 3.
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107
namely
adverb
Two skills matter most, namely listening and speaking.
collocationsnamely that · namely the · namely,
used to introduce a more exact explanation
Watch out: Put a comma before namely when it introduces a list.
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108
intermediate
adjective
She is at intermediate level.
collocationsintermediate level · an intermediate stage · intermediate course
in the middle between two levels, stages or positions
Watch out: Do not mix up intermediate (middle) with immediate (at once).
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109
transmission
noun
Transmission of the virus happens through close contact.
collocationsdisease transmission · the transmission of · signal transmission
the passing of something from one place or person to another
Watch out: The verb is transmit, with the stress on the second syllable.
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110
dose
noun
Take one dose every morning.
collocationsa daily dose · a high dose · a lethal dose
the amount of a medicine or other substance taken at one time
Watch out: Dose is the amount. Dosage is the system for giving it.
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111
occurrence
noun
Earthquakes are a rare occurrence here.
collocationsa rare occurrence · a common occurrence · the occurrence of
something that happens, or how often it happens
Watch out: The spelling has double c and double r.
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112
maternal
adjective
Her maternal grandmother lived in Spain.
collocationsmaternal grandmother · maternal health · maternal instinct
connected with a mother, or related through the mother
Watch out: The father equivalent is paternal.
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113
axis
noun
The Earth turns on its axis every day.
collocationsthe x axis · rotate on its axis · vertical axis
an imaginary line around which something turns, or a line on a graph
Watch out: The plural is axes: /ˈæksiːz/.
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114
rational
adjective
A rational person weighs the facts first.
collocationsrational decision · a rational explanation · rational thinking
based on reason and clear thinking, not on feelings
Watch out: Rational is the opposite of irrational.
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115
locus
noun
The temple was the locus of religious life.
collocationsthe locus of · a locus of power · genetic locus
the exact place where something happens or is found
Watch out: The plural is loci: /ˈləʊsaɪ/.
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116
elite
noun
A small elite controlled the country.
collocationsthe ruling elite · a political elite · the educated elite
a small group with more power, money or skill than others
Watch out: Elite is pronounced like eh-LEET.
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117
approximation
noun
Ten thousand is only an approximation.
collocationsa rough approximation · a close approximation · an approximation of
a number or answer that is close to the exact one, but not exact
Watch out: Approximate is both adjective and verb.
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118
thesis
noun
She is writing a doctoral thesis.
collocationsa doctoral thesis · thesis statement · defend a thesis
a long piece of writing for a university degree, or a main idea argued in an essay
Watch out: The plural is theses: /ˈθiːsiːz/.
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119
sin
noun
Many faiths teach that greed is a sin.
collocationscommit a sin · a mortal sin · original sin
a morally wrong act, especially in religion
Watch out: The verb is also sin, with the past sinned.
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120
classification
noun
The classification of animals helps scientists.
collocationsa system of classification · classification of · by classification
the act of sorting things into groups
Watch out: The verb is classify.
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121
threshold
noun
The tax threshold rose this year.
collocationspain threshold · cross the threshold · on the threshold of
the level at which something starts to happen, or the floor of a doorway
Watch out: The h is pronounced in the middle: /ˈθreʃhəʊld/.
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122
syndrome
noun
Down syndrome is a genetic condition.
collocationsa rare syndrome · Down syndrome · a syndrome of
a group of signs that together show an illness
Watch out: Do not drop the final e sound at the end: /ˈsɪndrəʊm/.
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123
comparative
adjective
A comparative study looks at two countries.
collocationscomparative study · comparative advantage · comparative analysis
measuring or judging by comparing two or more things
Watch out: Comparative is also a grammar term: bigger, more useful.
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124
activate
verb
Press this button to activate the alarm.
collocationsactivate a card · activate the alarm · activate a switch
to start something working
Watch out: Activate is the opposite of deactivate.
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125
adolescent
noun
Adolescents need more sleep than adults.
collocationsan adolescent boy · adolescent development · adolescent years
a young person who is growing from a child into an adult
Watch out: Adolescent can also be an adjective.
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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 word water has two : wa and ter.
Each is a long thread in the cell that carries many genes along its length.
The virus can enter the body and the lungs, which makes breathing painful.
A compass needle points north because of the Earth's field.
The of the system, meaning how its parts are arranged and connected, was changed last week.
Maths students work with data, such as measurements and counts.
Two skills matter most, listening and speaking.
She is at level: better than a beginner but not yet advanced.
The of the virus happens through close contact between people.
Take one of the medicine every morning, before you eat.
Earthquakes are a rare in this region, and many people have never felt one.
Your grandmother is your mother's mother.
The Earth turns on its once every twenty-four hours.
A person thinks clearly and makes sensible decisions, even when upset.
The temple was the of religious life in the region for many centuries.
Only a small of wealthy families controlled the country and its land.
Five thousand is only an of the crowd size; the real number may be different.
She spent three years writing her doctoral on climate change.
Telling lies is considered a in many religions, and a person may feel guilty.
The of animals into mammals, birds and reptiles helps scientists to study them.
Water freezes when the temperature drops below the freezing of zero degrees.
A group of signs that often appear together and point to one illness is called a .
A study looks at two countries side by side to see how they differ.
Press this button to the alarm before you leave the house.
An is a young person between childhood and adulthood.
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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.