The high street purchases will reinforce perception of Kate's mastery of the common touch.
In most battles, the rounds focus on battlers tearing each other down or hyping their own mastery of battle skills.
PTA, first and foremost, exhibits a mastery of form and composition.
early 13c., mesterie, "condition of being a master," also "superiority, victory;" from Old French maistrie, from maistre "master" (see master (n.)). Meaning "intellectual command" (of a topic, etc.) is from 1660s.