1 [singular, uncountable]PE the need or desire that people have for particular goods and services :
Production is still increasing faster than demand. ➔ supply and demand
Production is still increasing faster than demand.2 [countable] a very firm request for something that you believe you have the right to get :
demonstrations in support of the nationalists' demands
demonstrations in support of the nationalists' demands demand for
their demand for higher salaries
their demand for higher salaries3 the difficult, annoying, or tiring things that you need to do, or a skill you need to have
demands
[plural]4 when a lot of people have asked for something to be done, performed etc
popular demand
by/due to popular demand (=because of popular demand)
The exhibition will run for an extra week, due to popular demand.
The exhibition will run for an extra week, due to popular demand.5 whenever someone asks :
Should you feed your baby on demand, or stick to a timetable?
on demand
formal
Should you feed your baby on demand, or stick to a timetable?