demand, demandable 1. To ask for urgently or peremptorily: demand an investigation into the murder; demanding that he leave immediately; demanded to speak to the manager. 2. To claim as just or due: 'The bank demanded repayment of a loan.' 3. To ask to be informed of: 'I demand a reason for this interruption.' 4. To require as useful, just, proper,... Found on http://www.wordinfo.info/words/index/info/view_unit/1249/2