Did you know?

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

troll - definition and synonyms

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.

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.

verb     troll pronunciation in American English
Word Forms
present tense
present participletrolling
past tensetrolled
past participletrolled
  1. 1
    [intransitive] to try to catch fish using a fishing line tied to the back of a boat
  2. 2
    [intransitive] informal to walk somewhere in a relaxed way
  3. 3
    [intransitive/transitive] computing showing disapproval to write negative and hostile comments on a website in order to provoke people
  4. From our crowdsourced Open Dictionary
    to mock someone online, often in a subtle or undeclared way

    Pete Souza, the former chief photographer for Barack Obama in the White House, appears to be attempting to troll Donald Trump on Instagram.

    Submitted from United Kingdom on 09/02/2017

derived word


     trolling pronunciation in American English
noun [uncountable]

phrasal verbs



to manipulate someone psychologically so that they begin to question their own perceptions and memories

BuzzWord Article

Open Dictionary

Dunning-Kruger effect

the phenomenon by which an incompetent person is too incompetent to understand his own incompetence

add a word


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