1task 
/ˈtæsk/ noun
plural tasks /ˈtæsk/ noun [count] : a piece of work that has been given to someone : a job for someone to do
▪ a daunting/difficult/impossible task ▪ complete/accomplish a task ▪ performing simple/routine tasks ▪ Our first/main task is to review the budget. ▪ This is not an easy task. = This is no easy task. ▪ I need to concentrate on the task at hand. [=the work I'm doing right now] — see also multitasking
▪ a daunting/difficult/impossible task ▪ complete/accomplish a task ▪ performing simple/routine tasks ▪ Our first/main task is to review the budget. ▪ This is not an easy task. = This is no easy task. ▪ I need to concentrate on the task at hand. [=the work I'm doing right now] — see also multitasking
take (someone) to task
: to criticize (someone) harshly
▪ The boss took me to task for wasting time.
▪ The boss took me to task for wasting time.
synonyms task, duty, job, and chore mean a piece of work that has to be done. task suggests work given to you by someone who has authority.
▪ The boss used to give me all the hard tasks. duty stresses that someone is responsible for doing the work. ▪ The duty of the police is to protect the people. job may suggest that the work is necessary, hard, or important. ▪ We all have to do our jobs. chore suggests a small, ordinary piece of work that is done regularly. ▪ Taking out the garbage is a daily chore.
▪ The boss used to give me all the hard tasks. duty stresses that someone is responsible for doing the work. ▪ The duty of the police is to protect the people. job may suggest that the work is necessary, hard, or important. ▪ We all have to do our jobs. chore suggests a small, ordinary piece of work that is done regularly. ▪ Taking out the garbage is a daily chore.
