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(noun)
(pl gases, gasses) an air-like substance with the capacity to expand indefinitely and not liquefy or solidify at ordinary temperatures; any mixture of flammable gases used for lighting or heating; any gas used as an anaesthetic; any poisonous substance dispersed in the air, as in war; (inf.) empty talk; gasoline.
> gas
(transitive verb)
(gases or gasses, gassing, gassed) to poison or disable with gas; (inf.) to talk idly and at length.