Examples of “dictionary” in a Sentence

noun A reference book that lists words alphabetically along with their meanings, pronunciations, and other details.

• I checked the spelling in my dictionary before writing the final letter.
• She looked up the word in an online dictionary.
• The old dictionary on the shelf was falling apart from years of use.

noun In computing, a data structure that stores values under unique keys for quick lookup.

• You can add a new entry to the dictionary by choosing a unique key.
• Looking up a value in a dictionary is much faster than scanning a long list.
• The program stores user settings in a dictionary keyed by username.