1. (n.) State or quality of being solid; firmness; compactness; solidity, as of material bodies.

2. (n.) Soundness; strength; truth; validity, as of arguments, reasons, principles, and the like.

THI accord accordance addition adjunct affairs affiliation affinity agreement airlessness airtight secrecy alikeness alliance analogy aping approach approximation assemblage assimilation association avarice bond cheapness chumminess close secrecy closefistedness combination community compactness comparability comparison concealment confinement confines conformity congestedness congestion connectedness connection consistence consistency contiguity contrariety convergence copying correspondence crowdedness crypticness dealings deduction denseness density discreetness discretion disjunction environs evasion evasiveness familiarity filiation firmness foreground gluiness hair hairbreadth hairsbreadth hardfistedness hardness hiddenness hoarding homology hugger-mugger hugger-muggery humidity humidness identity illiberality imitation immediacy immediate foreground impenetrability impermeability imporosity incapaciousness incommodiousness incompressibility indisposition to speak inseparableness intercourse intimacy intimate acquaintance jammedness junction lack of meaning lack of message liaison likeness likening limitation link linkage linking mateyness meaninglessness metaphor mimicking miserliness mugginess mutual attraction narrow gauge narrowness nearness neighborhood nighness oppression oppressiveness palliness parallelism parity penny-pinching precinct propinquity proximity purlieus rapport relatedness relation relations relationship relative density resemblance restrictedness restriction sameness secrecy secretiveness secretness semblance similarity simile similitude simulation slenderness solidity solidness special affinity specific gravity spissitude stickiness stinginess straitness strictness stuffiness subterfuge swelter sympathy temperature-humidity index the dark thickness tie tie-in tight purse strings tight squeeze tightfistedness tightness uncommunicativeness unconversableness ungenerosity union unsociability vicinage vicinity viscidity viscosity viscousness