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Cambridge Academic Content Dictionary

With comprehensive coverage of key academic terms as well as a broad range of everyday meanings, this monolingual dictionary is perfect for intermediate and upper-intermediate students of American English.

Cambridge Academic Content Dictionary is the best dictionary for general American English on Cambridge Dictionaries Online. Select "American English" from the list of dictionaries at the top of any page on Cambridge Dictionaries Online to search this dictionary.

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Key Features

More than 2,100 key words and meanings from the U.S. content areas

Words and meanings from U.S. and world history, English, algebra, geometry, art, biology, chemistry, earth science, physics, and other content areas are clearly labelled and explained. These can be main entries, such as hadron (from physics). Or they can be special meanings of more common words, such as the sense of line used in geometry.

Learn how to use the word

Thousands of natural example sentences show words in context: At assign, the examples show that people can be assigned jobs, people can be assigned to a place, and things can be assigned to people.

American Pronunciation

Hear the words spoken online with thousands of American English recordings: Try listening to the different pronunciations for the "control" sense of lead and the "metal" sense of lead.

Also available as a book

Get the Cambridge Academic Content Dictionary from Cambridge ESL.

  • Includes more than 60,000 easy-to-understand definitions and useful examples.
  • Highlights common mistakes through Usage, Grammar, and Spelling notes.
  • Expands vocabulary using Word Family and Word Choices boxes.
  • 20 Reference Pages cover place names, measurements, prefixes and suffixes, irregular verbs, punctuation, math and science symbols, biological classification, the periodic table, geologic time, a glossary of literary terms, and more.

Other dictionaries

In other dictionaries...

Definiciones de “expenditure” en otros diccionarios
Traducciones de “expenditure” en otras lenguas

If you search for a word, then decide you want to see what another Cambridge dictionary says about it, you can use the ‘In other dictionaries’ section on the right.

For example if you look up the definition for expenditure in British English, then want to find out what the American English dictionary says, click on ‘American English’. If you then want to find a Spanish translation for that word, click on ‘in Spanish’.

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Palabra del día
child benefit

money received regularly by families from the government to help pay for the costs of taking care of children

Palabra del día

Are you a glass-half-full person? (Everyday Idioms)
Are you a glass-half-full person? (Everyday Idioms)
by Kate Woodford,
July 29, 2015
A reader of this blog recently asked for a post on idioms that are used in everyday English. This seemed like a reasonable request. After all, if you are going to make the effort to learn a set of English idioms, you want those idioms to be useful. The question, then, was

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responsible luxury noun
responsible luxury noun
August 03, 2015
high-end, green tourism and hospitality Jumeirah’s ‘responsible luxury’ approach is an example of a sustainable travel experience – future guests will enjoy the environment as much as today’s.

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