not permanent; not lasting; "politics is an impermanent factor of life"- James Thurber; "impermanent palm cottages"; "a temperary arrangement"; "temporary housing"
the flash of light that accompanies an electric discharge in the atmosphere (or something resembling such a flash); can scintillate for a second or more
abrupt electric discharge from cloud to cloud or from cloud to earth accompanied by the emission of light
authenticate, affirm to be true, genuine, or correct, as in an official capacity; "I attest this signature"
establish or verify the usage of; "This word is not attested until 1993"
provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes; "His high fever attested to his illness"; "The buildings in Rome manifest a high level of architectural sophistication"; "This decision demonstrates his sense of fairness"
a flight maneuver; aircraft tips laterally about its longitudinal axis (especially in turning); "the plane went into a steep bank"
a building in which the business of banking transacted; "the bank is on the corner of Nassau and Witherspoon"
an arrangement of similar objects in a row or in tiers; "he operated a bank of switches"
a long ridge or pile; "a huge bank of earth"
sloping land (especially the slope beside a body of water); "they pulled the canoe up on the bank"; "he sat on the bank of the river and watched the currents"
a slope in the turn of a road or track; the outside is higher than the inside in order to reduce the effects of centrifugal force
the funds held by a gambling house or the dealer in some gambling games; "he tried to break the bank at Monte Carlo"
a supply or stock held in reserve for future use (especially in emergencies)
cover with ashes so to control the rate of burning; "bank a fire"
enclose with a bank; "bank roads"
tip laterally; "the pilot had to bank the aircraft"
be in the banking business
act as the banker in a game or in gambling
do business with a bank or keep an account at a bank; "Where do you bank in this town?"