demand

1 demand /dɪˈmænd/ Brit /dɪˈmɑːnd/ noun
plural demands
1 demand
/dɪˈmænd/ Brit /dɪˈmɑːnd/
noun
plural demands
Britannica Dictionary definition of DEMAND
1 
[count] : a forceful statement in which you say that something must be done or given to you
— often + for
2 
[singular] : a strong need for something
3 
: the ability and need or desire to buy goods and services
[noncount]
— often + for
[singular]
— often + for
— see also supply and demand
4 
demands [plural]
a  : difficult things you have to do because someone requires you to do them or because they are part of a job, activity, etc. — often + of
b  — used to describe something that requires a large amount of energy, time, etc.

in demand

: needed or wanted by many people

on demand

: when needed or wanted
— see also on-demand

popular demand

: a request made by or a desire shared by many people
2 demand /dɪˈmænd/ Brit /ˈdɪˈmɑːnd/ verb
demands; demanded; demanding
2 demand
/dɪˈmænd/ Brit /ˈdɪˈmɑːnd/
verb
demands; demanded; demanding
Britannica Dictionary definition of DEMAND
[+ object]
1 
: to say in a forceful way that something must be done or given to you : to say that you have a right to (something)
2 
: to say or ask (something) in a very forceful way
3 
: to require (something)