familiarity-n; 4 Senses

Sense Number 1: personal knowledge, direct acquaintance with something or someone

Commentary: FAMILIARITY[+state][+cognitive][+knowledge][+acquaintance][+direct]
NOTE: refers to a subject's knowledge of a thing, not the thing itself (Sense 2)
NOTE: X's FAMILIARITY WITH Y -> X KNOWS Y

Examples:
The lawyers were given a briefing to deepen their familiarity with the case.
My familiarity with the internal workings of a combustion engine is extremely limited.
His great familiarity with both Chopin and Debussy are evident in the depth and nuances of his interpretations.
We need to increase customer familiarity with this new product.
The scholar's familiarity with these bedouin tribes is quite extensive.

Mappings:
WordNet 3.0 Sense Numbers: 1

Sense Number 2: having the quality of not being surprising or new, being well known, habitual

Commentary: FAMILIARITY[+quality][-new][-surprising][+well_known]
NOTE: refers to the thing itself as something known, unsurprising.
NOTE: FAMILIARITY OF X -> X HAS-ATTRIBUTE WELL-KNOWN

Examples:
The familiarity of his own bed and blanket was reassuring to the puppy.
The familiarity of the smells of the marketplace brought back intense memories from childhood.
Mary experienced the annoying familiarity of her daily commute as she merged onto the freeway.

Mappings:
WordNet 3.0 Sense Numbers: 2

Sense Number 3: state of social informality, friendliness

Commentary: FAMILIARITY[+state][+social][+informality][+friendliness]

Examples:
Familiarity allows us to assign nicknames to each other.
We'll have to forgo our usual familiarities during the meeting with the visiting foreign dignitaries.
John preferred the familiarity of the soldiers barracks to the formality of the officers quarters.

Mappings:
WordNet 3.0 Sense Numbers: 3, 4

Sense Number 4: inappropriately informal social conduct or behavior

Commentary: FAMILIARITY[+activity][+social][+behavior][+conduct][+informal][+inappropriate]

Examples:
The salesman's familiarity of calling me 'Dave' instead of 'David' annoyed me.
The doctor's familiarities were not welcomed by the nursing staff.
I took familiarities with their dog that were too sudden for him and he snapped at me.

Mappings:
WordNet 3.0 Sense Numbers: 5