a compere or a host or an emcee?
Which word should I use if I want to write that ，

"a girl of ten was invited by her social worker to be a compere/host/an emcee of/for an (informal) volunteer award presentation cetemony for a charity organization."

People here just call this role "MC" ( emcee). I just wonder if this is an appropriate use in the above case. Is there a difference among them? Or is there another word better to use?

Question

a compere or a host or an emcee?
Which word should I use if I want to write that ，

"a girl of ten was invited by  her social worker to be a  compere/host/an emcee of/for an (informal) volunteer award presentation cetemony for a charity organization." 
 
People here just call this role "MC" ( emcee). I just wonder if this is an appropriate use in the above case. Is there a difference among them?  Or is there another word better to use?

Answer

An MC or Master of Ceremonies is sometimes called a "host". TV shows usually use "host" for people who appear on the show for every broadcast. An MC is generally the "host" of one particular event that won't be repeated.

Answer

thank you, Ric , for teaching me ::

Answer

All of these mean more or less the same thing and are interchangeable. The difference is more in the culture and context. For example, (in the UK at least) a comedy night has a compere, while a formal dinner would have a host.
MC sounds fine in your context above. Probably the most neutral term, if you're not sure which to use, is 'host'.