Can i use my other domains for other sites

i want to use my domains for my other sites
etc// i have 10 domain but i can use it for one site now
i want to use 10 domains for 10 other sites but i want to use one webspace 2 mysql is enough for me
what should i do ?
or can i open more account with my other email adress ?
Thanks for helps

sorry for my english :wink:

sorry i cant realize it now i find it sorry for my message please delete it
thanks for much :wink: