WordWeb Online

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
    
4. Disappear gradually
   "The pain eventually passed off";
   - evanesce, fade, blow over, fleet, pass
    
5. (of an event) come to pass (in time, so that it is real and actual at some time)
   "What is passing off?";
   - happen, hap [archaic], go on, occur, pass, fall out, come about, take place
    
6. Expel (gases or odours)
   - emit, breathe

Derived forms: passes off, passed off, passing off

Type of: appear, brush aside, brush off [informal], disappear, discharge, discount, dismiss, disregard, eject, exhaust, expel, go away, ignore, look, make pass, pass, push aside, release, seem, vanish

Encyclopedia: Pass off