In simple terms, "thorough familiarity" means having a deep understanding or knowledge about something. It suggests being very familiar with a subject or situation, knowing it well and being able to navigate through it comfortably.
Sentences with «thorough familiarity»
Strongly skilled and hardworking Plumbing Engineer with thorough familiarity with all building construction systems. (livecareer.com)
Building superintendent with thorough familiarity of building maintenance, plumbing, heating and electrical systems. (livecareer.com)
Even thorough familiarity with the nature of atoms can not dispel their ineffable aura of mystery. (discovermagazine.com)