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