CAT
aerospace
aerosphere
air hole
air pocket
airspace
apparentness
bump
ceiling
clearness
crosswind
crystal-clearness
distinctness
empty space
evidence
evidentness
favorable wind
fog
front
head wind
high-pressure area
hole
ionosphere
jetstream
low-pressure area
manifestness
obviousness
openness
openness to sight
overcast
overtness
palpability
patentness
perspicuity
plainness
pocket
roughness
soup
space
stratosphere
substratosphere
tail wind
tangibility
tropopause
troposphere
trough
turbulence
unmistakableness
unquestionability
visibility zero
clarity
uncloudedness
visible
visibly
access
accountability
allocation
altitude
availability
bandwidth
capability
coverage
coördination
credibility
effectiveness
firepower
flexibility
humidity
integration
leverage
liquidity
mobility
productivity
reconnaissance
sensitivity
stability
terrain
accessibility
advisability
believability
collectibility
comparability
convertibility
culpability
deniability
dependability
desirability
disability
durability
eligibility
enforceability
facility
fallibility
favorability
fertility
flammability
gentility
gullibility
humility
immobility
impossibility
inability
incivility
incompatibility
indestructibility
inevitability
infallibility
infertility
inflexibility
instability
invincibility
invulnerability
liability
maneuverability
marketability
miscibility
motility
nonutility
permeability
plausibility
portability
predictability
profitability
readability