merdeka !??

is it merdeka only refer to the nation ? why is m'sia merdeka ?? why is every1 celebrating merdeka ? why is ppl must have holiday during merdeka ?

wat about merdeka for some1 ? is it because he/she had granted his/her freedom ? o is it about he/she is single again ? hahha.. i really don understand...

wat is the true meaning of merdeka ?? any1 can explain to me ? hahha...