contain
verb OPAL WOPAL S
  /kənˈteɪn/
  /kənˈteɪn/
not used in the progressive tensesVerb Forms
| present simple I / you / we / they contain |  /kənˈteɪn/  /kənˈteɪn/ | 
| he / she / it contains |  /kənˈteɪnz/  /kənˈteɪnz/ | 
| past simple contained |  /kənˈteɪnd/  /kənˈteɪnd/ | 
| past participle contained |  /kənˈteɪnd/  /kənˈteɪnd/ | 
| -ing form containing |  /kənˈteɪnɪŋ/  /kənˈteɪnɪŋ/ | 
- contain something if something contains something else, it has that thing inside it or as part of it- This drink doesn't contain any alcohol.
- The documents contain sensitive information.
- Electronic products contain hazardous materials that cannot be deposited in landfills.
- His account contained an element of truth.
- to contain an amount/a number/a level of something
- He handed over a brown envelope containing a hundred dollar bills.
- The fish were found to contain traces of mercury.
- The bottle contains (= can hold) two litres.
- contained in something He said he was opposed to some of the provisions contrained in the bill.
- contained within something The stories contained within these pages are highly enjoyable.
 Extra Examples- The book contains no illustrations.
- These cells contain genes and proteins that interact with one another.
- The film contains amazing fight sequences.
- Her statement contained one or two inaccuracies.
 
- to keep your feelings under control synonym restrain- contain something She was unable to contain her excitement.
- She could hardly contain her excitement.
- contain yourself I was so furious I just couldn't contain myself (= I had to express my feelings).
 
- contain something to prevent something harmful from spreading or getting worse- to contain an epidemic
- Government forces have failed to contain the rebellion.
 Extra Examples- He introduced repressive measures to contain the violence.
- Overall planning policies are designed to contain the growth of urban sprawl.
 
Word OriginMiddle English: from Old French contenir, from Latin continere, from con- ‘altogether’ + tenere ‘to hold’.