Learner's definition of REGULARITY
the quality of being regular: such as
the quality of something that happens very often or with the same amount of time between each occurrence
— often + of
— often used after with
She appears with regularity [=appears regularly] on the show.
Fights break out with some regularity.
Robberies have been occurring with increasing/alarming regularity.
the quality of something that has parts which are arranged in an even or balanced way
something that happens very often or with the same amount of time between each occurrence