Require
Need
Synonyms: Need, stand in need of, be crying out for, vital, necessary, called for, prerequisite, obligatory, prescribed, recommended, de rigueur, preferred, selected, proper, be in need of, have need of, essential, indispensable, needed, requisite, compulsory, mandatory, statutory, set, desired, chosen, correct, and right.
Necessitate
Order
Synonyms: Order, command, oblige, compel, charge, force, instruct, enjoin, bid, constrain, and make.
Demand
Synonyms: Demand, call for, request, command, exact, look for, insist on, ask for, order, decree, and expect.
Example Sentences
I require more time to finish the task.
Most jobs require good communication skills.
Plants require water and sunlight to survive.
You require a ticket to enter the event.
The position will require frequent travel.
This device may require an update.
Children require attention and care.
You require a valid ID to register.
The repairs require professional assistance.
We require everyone to attend the meeting.