Did you know?

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

watch out for - 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.

phrasal verb [transitive]
Word Forms
present tense
I/you/we/theywatch out for
he/she/itwatches out for
present participlewatching out for
past tensewatched out for
past participlewatched out for
  1. 1
    watch out for something/someone to be careful of something or someone

    Watch out for snakes!

    We will be discussing street crime and what you should watch out for.

  2. 2
    watch out for something/someone same as watch

    Watch out for big discounts and clearance sales at this time of the year.

  3. 3
    watch out for someone to make sure that nothing bad happens to someone

    People in my family have always watched out for one another.

See also main entry: watch


a lifestyle focussing on simple pleasures such as comfort and cosiness in the home, and spending time with friends and family

BuzzWord Article

Open Dictionary


a form of location that involves the underwater detonation of a bomb which causes sound waves that are picked up by ships

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