LDOCE
conclude   verb 

1 

[transitive] 

to decide that something is true after considering all the information you have

 ￚsee also  
conclusion 

  conclude that

 - The report concluded that the school should be closed immediately. 

  conclude from something that

 - Richardson concluded from his studies that equality between the sexes is still a long way off. 

2 

[transitive] 
 formal  

to complete something you have been doing, especially for a long time

 - When the investigation is concluded, the results will be sent to the US Attorney's office. 

 - Francis, having concluded his business with James, left for Miami. 

3 

[intransitive and transitive] 

to end something such as a meeting, book, event, or speech by doing or saying one final thing

  conclude with

 - Each chapter concludes with a short summary. 

  conclude by doing something

 - She concluded by saying she was proud to be from Salford. 

 -  To conclude  , I'd like to express my thanks to my family. 

 - 'So now', she concluded, 'I'm trying to bring some order to the garden.' 

4 

  conclude an agreement/treaty/contract etc

to finish arranging an agreement etc successfully

 - That same year, France concluded a trading agreement with Spain. 

+ concluding   adjective 

 - Phrase bank :
Dictionary phrases:
conclude an agreement/treaty/contract etc
conclude by doing sth
conclude from sth that
conclude that
conclude with
To conclude
        hrases from other entries:
        
concluding remark/section/stage etc
 
introductory/opening/concluding remarks