essential, compulsory, required, necessary, enforced, requisite, mandatory, binding
A synonym for changable is adaptable.
A synonym for common noun is word.
A synonym for debris is garbage. An antonym for debris is cleanliness.
detector or metal detectors
a synonym is like more than one word that means the same thing
mandatory, obligatory, forced, required, binding, imperative, requisite
It is obligatory for us to attend school.
obligatory points digram
Another word for obligatory is "required" or "necessary".
It is obligatory that we finish this assignment before class ends.
"Obligatory" is an adjective that describes something that is required or necessary.
Obligatory Villagers was created on 2007-09-25.
fasting is obligatory at the month of Ramadan only other days the fasting is optional , fasting is obligatory for adult Muslim , but if there is satisfactory condition it will not be obligatory and if you have to travel and it make you tired so it will not be obligatory
Obligatory points are strategic control points used to govern railway alignment
In a well-made play, the obligatory scene is the scene:
It's not really obligatory in any way
Optional means non-obligatory or suggested.