to want something or someone that we must have if we want to do or be something
used for saying what one should or has to do
to be required or obliged to do a certain thing
a state of extreme poverty or destitution
a condition or situation in which something is necessary
(usually plural) a set of things that allow someone to achieve their goal or live comfortably
the psychological feature that arouses an organism to action toward a desired goal; the reason for the action; that which gives purpose and direction to behavior