to cease to be seen; vanish from sight.

to cease to exist or be known; pass away; end gradually

One by one the symptoms disappeared.

verb

appear , arrive , come in

verb

abandon , abscond , be done for , be gone , be lost , be no more , be swallowed up , cease to exist , clear , come to naught , decamp , dematerialize , depart , die , die out , disperse , dissipate , dissolve , drop out of sight , ebb , end , end gradually , escape , evanesce , evanish , evaporate , exit , expire , fade , fade away , flee , fly , go , go south , leave , leave no trace , melt , melt away , pass , pass away , perish , recede , retire , retreat , sink , take flight , vacate , vamoose * , wane , withdraw , fade out , vanish , be lost to view , cease , diminish , vamoose