Throw away = To get rid of something.

• We threw away the old newspaper.

Throwaway = designed to be used only once; something of small value.

• A throwaway ball pen.
• Throwaway cups and plates.
• Theirs is a throwaway culture. ( a way of life which gives little value to people and things)

 

Every body = each (dead) body.

• Every body was collected from the battlefield.

Everybody = everyone; each person.

• Everybody has to obey the rules without exception.

 

Can not – you have the freedom not to do something.

• You can not accept the charity offered.
  (i.e., If you do not want it, you can decline the offer.)

Cannot is the opposite of can.

• You cannot violate the rules of the college.

 

Common place 

• The common places in a city – airport, bus station, park, playground, etc.

Commonplace = 1) ordinary, average, cliched, unoriginal.

• Nowadays costly cars are increasingly commonplace.
• Theirs is a commonplace remark about modernity.

2) A boring remark that is used very often and does not have much meaning.

• We exchanged commonplaces about the weather during the tea-break.