Did you know?

Click any word in a definition or example to find the entry for that word

dumb - definition and synonyms

Close
What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.

Close
ThesaurusThesaurus
Thesaurus diagram

The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

more
verb     dumb pronunciation in British English
/dʌm/
Word Forms
Close
present tense
I/you/we/theydumb
he/she/itdumbs
present participledumbing
past tensedumbed
past participledumbed

phrasal verb

dumb down

[intransitive/transitive]
Word Forms
Close
present tense
I/you/we/theydumb down
he/she/itdumbs down
present participledumbing down
past tensedumbed down
past participledumbed down
BuzzWord

moonbow

a rainbow produced when water droplets in the air reflect light from the moon rather than the sun

BuzzWord Article

Open Dictionary

platform capitalism

a way of doing business that involves recruiting large numbers of people who work for themselves using the company's platform, as used by companies such as Uber, Deliveroo and the like

add a word

Blog

A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog
Macmillan learn live love play