[syn: emit, breathe, pass off]
WordNet (r) 3.0 (2006):
pass off
    v 1: be accepted as something or somebody in a false character
         or identity; "She passed off as a Russian agent"
    2: disregard; "She passed off the insult"
    3: cause to be circulated and accepted in a false character or
       identity; "She passed the glass off as diamonds"; "He passed
       himself off as a secret agent"
    4: disappear gradually; "The pain eventually passed off" [syn:
       evanesce, fade, blow over, pass off, fleet, pass]
    5: come to pass; "What is happening?"; "The meeting took place
       off without an incidence"; "Nothing occurred that seemed
       important" [syn: happen, hap, go on, pass off,
       occur, pass, fall out, come about, take place]
    6: expel (gases or odors) [syn: emit, breathe, pass off]