premium

[1]	bonus , insurance premium , extra , dividend , prize , award , reward , perquisite
[2]	incentive , inducement , stimulus , incitement , lure , bait , spur , goad , reward , (Colloq) come-on , (Slang) (US/Canadian) freebie
[3]	value , agio , agiotage , importance , regard , exchange premium , stock , store , appreciation
[4]	at a premium , scarce , rare , scant , scanty , sparse , hard to come by , in short supply , (Colloq) scarce as hen's teeth , (Mainly Brit) thin on the ground costly , expensive , dear , high-priced , (Colloq) steep , stiff
[5]	bounty