two pieces of bread with a filling inside, e.g. meat or jam

something that holds things

to put something/someone in place of something/someone else

an exception to the rule

A doctor of medicine

to try to get someone to do something they should not

to slowly get more and more of something, e.g. wealth

the act of circulating things in a wide area

ongoing, happening more than once in a particular order

a file containing information about a particular subject, and relatated problems to be solved by the student