Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “lost”

See all translations

lost

adjective uk   /lɒst/ us    /lɑːst/

lost adjective (PLACE UNKNOWN)

A2 not knowing where you are and how to get to a place: I got lost in the New York subway system. You look lost - can I help you?B1 If something is lost, no one knows where it is: Things tend to get lost when you move. Lost: black cat with white paws. Mikey turned up with the lost book.
More examples

lost adjective (CONFUSED)

C1 not confident and not knowing what to do in a particular situation: It was his first day in the office and he seemed a little lost.

lost adjective (ATTENTION)

be lost in sth giving so much attention to what you are doing that you are not conscious of anything else that is happening around you: Ann was completely lost in her book.
(Definition of lost from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of lost?
Add Cambridge dictionaries to your browser to your website

Definitions of “lost” in other dictionaries

Word of the Day

luck

the force that causes things, especially good things, to happen to you by chance and not as a result of your own efforts or abilities

Word of the Day

A certain je ne sais quoi: French words and phrases used in English

by Liz Walter,
January 21, 2015
It is an odd irony that the more sophisticated your use of English is, the more likely you are to use French words and phrases. Or, to be more accurate, ones you know to be French – words such as ballet, au pair, abattoir, fiancé, café, and restaurant are so entrenched in

Read More 

flower beard noun

January 19, 2015
a beard adorned with flowers And some of said beard-rockers are even turning it up a notch, painting trend on top of trend with what’s come to be known as ‘the flower beard.’

Read More