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  1. Home /
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dictionary

/ˈdɪkʃənəri/
reference book listing words with definitions

She looked up the word in her dictionary.

She used a dictionary to find the definition of a word.


formal

A reference book containing words listed alphabetically with their meanings, pronunciations, and other information.

The dictionary defines 'serendipity' as a fortunate accident.

The dictionary provides the meaning of 'serendipity' as a lucky coincidence.

Dictionaries may also include etymologies, usage examples, and synonyms.

Collocations

look up in the dictionaryto search for a word's meaningconsult a dictionaryto check a word's definition

Synonyms

lexiconwordbookreference book

Related Phrases

dictionary definitionphrase
the official meaning of a word as listed in a dictionary
dictionary.comphrase
a popular online dictionary website

Pro Tip

Using a Dictionary Effectively

When looking up a word, check the part of speech and context to ensure you're using the correct definition.

Gold Rule

Dictionary Accuracy

Dictionaries are authoritative sources for word meanings, but they may vary slightly in definitions.

Word Origin

From Latin 'dictionarium', meaning 'a collection of words', from 'dictio' (speech, word).

Usage Notes

Dictionaries are essential tools for language learners and writers. Some dictionaries specialize in specific fields like medicine or law.

Word Breakdown

dict
speech, word
root
+
-ion
the act of
suffix
+
-ary
pertaining to
suffix
English Dictionary
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Words of the Year

The most notable words that defined each year. Discover the vocabulary that shaped our world.