demand, request, need
需 centers on a strong want that must be satisfied: a demand, a request, or a pressing need.
需 combines 雨 (rain) with 而, which likely contributes the sound and may have originally suggested a soft, yielding quality. The exact historical development is uncertain, but the character came to express the idea of needing or demanding.
Rain 雨 falls on a person 而 who is waiting with an open mouth, desperately demanding water to quench their need.
For ジュ, imagine a person demanding juice: juice -> ジュ, and they need it right now under the rain.
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demand; need
necessary
munitions; military stores
supply and demand
emergency demands; special procurement (particularly in time of war)
domestic demand
foreign demand
actual demand; user demand
demand for replacement; request for replacement; need for replacement
imaginary demand; demand caused by speculation; speculative demand
domestic demand-led recovery
domestic demand-based
expansion of domestic demand
domestic demand
official demand
stay-at-home demand (e.g. during the COVID-19 pandemic)
necessities; necessary article; requisite; essentials
responding to a demand; answering a request
final demand
effective demand