Necessitate is a verb meaning to make something necessary or obligatory. The crossword solutions for this term are ENFORCE (7 letters), COMPEL (6 letters), FORCE (5 letters), CAUSE (5 letters), CONSTRAIN (9 letters), REQUIRE (7 letters), DEMAND (6 letters), INVOLVE (7 letters), OBLIGE (6 letters), NEED (4 letters), and ENTAIL (6 letters). All of these words have similar meanings, but can be used in different contexts. For example, ENFORCE and COMPEL are often used when referring to laws or rules, while FORCE and CAUSE are more general terms that can refer to any kind of action. CONSTRAIN and REQUIRE are used to describe situations where someone is obligated to do something, while DEMAND and INVOLVE are used to describe situations where someone is asked to do something. OBLIGE and NEED are used to describe situations where someone is expected to do something, and ENTAIL is used to describe situations where something is a necessary consequence of another action.