used — English Dictionary

Verb

1. In used to.

Adjective

1. That is or has or have been used.

   Antonyms

   unused

   Examples

   The ground was littered with used syringes left behind by drug abusers.

   More examples (1)

   Economics is a messy discipline: too fluid to be a science, too rigorous to be an art. Perhaps it is fitting that economists’ most-used metric, gross domestic product (GDP), is a tangle too. GDP measures the total value of output in an economic territory. Its apparent simplicity explains why it is scrutinised down to tenths of a percentage point every month.

2. That has or have previously been owned by someone else.

   Synonyms

   pre-ownedsecond-hand

   Antonyms

   new

   Examples

   He bought a used car.

3. In used to.

Adjective

1. employed in accomplishing something

   Antonyms

   misused

2. (of persons) taken advantage of

   Synonyms

   exploitedill-usedput-uponvictimizedvictimised

   Examples

   after going out of his way to help his friend get the job he felt not appreciated but used

3. previously used or owned by another

   Synonyms

   secondhand

   Examples

   bought a secondhand (or used) car