Meaning : A principle or condition that customarily governs behavior.
Example :
It was his rule to take a walk before breakfast.
Short haircuts were the regulation.
Synonyms : rule
Meaning : The state of being controlled or governed.
Meaning : (embryology) the ability of an early embryo to continue normal development after its structure has been somehow damaged or altered.
Meaning : The act of bringing to uniformity. Making regular.
Synonyms : regularisation, regularization
Meaning : The act of controlling or directing according to rule.
Example :
Fiscal regulations are in the hands of politicians.
Synonyms : regulating
Meaning : Prescribed by or according to regulation.
Example :
Regulation army equipment.