gas

1 boastful speech or writing all that gas about being the best fisherman in the world Synonyms bluster, brag, braggadocio, bull [slang], cockalorum, fanfaronade, bombast, gasconade, grandiloquence, hot air, magniloquence, rant, rodomontade (also rhodomontade)Related Words oratory, rhapsody, rhetoric; pomposity, turgidity, wind; bloviation, verbosity, windiness; babble, blab, chatter, drivel, gabble, gibber, gibberish, jabber, prattle; jawing, patter, prating, yammering; egotism, self-conceit, self-importance, swagger, vaunt

2 language that is impressive-sounding but not meaningful or sincere the candidate's pledge that he'll fight for the common people is just a lot of gas Synonyms bombast, fustian, rhetoric, grandiloquence, hot air, oratory, verbiage, windRelated Words claptrap, drivel, gibberish, hogwash, humbug, jabberwocky, jazz, moonshine, nonsense; affectedness, floweriness, grandiosity, loftiness, pomposity, pretension, pretentiousness; garrulity, garrulousness, verboseness, verbosity, windiness, wordiness

3 slang  a source of great satisfaction that movie with the spectacular special effects was a gas Synonyms delectation, feast, delight [slang], joy, kick, manna, pleasure, treatRelated Words amusement, diversion, entertainment, fun, recreation; comfort, relief, solace; gratification, indulgence; ambrosia

4 active strength of body or mind the tennis player ran out of gas toward the end of the long match Synonyms beans, bounce, brio, dash, drive, dynamism, energy, esprit, vigor, get-up-and-go, ginger, go, gusto, hardihood, juice, life, moxie, oomph, pep, punch, sap, snap, starch, verve, vim, vinegar, vitality, zing, zipRelated Words animal spirits, animation, briskness, jauntiness, liveliness, snappiness, spirit, spiritedness, sprightliness, spunk, spunkiness, vibrance, vibrancy, vivaciousness, vivacity; ardor, élan, fervor, fire, passion, zeal; main, metal, mettle, might, muscle, potency, power, puissance, stamina, strength; brawniness, fitness, hardiness, huskiness, sturdiness, virility; health, healthiness, soundness, verdure, wellnessNear Antonyms indolence, laziness; debilitation, debility, delicacy, disablement, enfeeblement, faintness, feebleness, frailness, frailty, impotence, impotency, infirmity, powerlessness, puniness, slightness, softness, tenderness, weakness; enervation, exhaustion, inanition, prostrationAntonyms lethargy, listlessness, sluggishness, torpidity