Yes, demand is a Scrabble word!

Verb

1. Request urgently and forcefully

2. Require as useful, just, or proper

3. Claim as due or just

4. Lay legal claim to

5. Summon to court

6. Ask to be informed of

Noun

1. An urgent or peremptory request

2. The ability and desire to purchase goods and services

3. Required activity

4. The act of demanding

5. A condition requiring relief