RichThesaurus
mastery of
mastery of
synonyms
understanding of
awareness of
comprehension of
grasp of
cognizance of
insight into
knowledge of
proficiency in
realization of
skill in
perception of
skill with
grip
familiarity
experience of
conception of
familiarity with
conversancy with
conversance with
apprehension of
ken of
command of
acquaintance with
expertise in
acquaintanceship with
mastery of
definitions