the GNU version of the Collaborative International Dictionary of English
n. The quality or state of being tenable; tenableness.
The Century Dictionary and Cyclopedia
n. The state or character of being tenable; tenableness.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the quality of being plausible or acceptable to a reasonable person
Word Usage
"In addition to monitoring thermal conditions and visibility, researchers also measured the oxygen, carbon monoxide and carbon dioxide levels to determine the tenability, that is, survival conditions, on the fire floor."