definition of
fog

[1] #1 fog n. droplets of water vapor suspended in the air near the ground. wn

[2] #2 fog n. [fogginess, murk, murkiness] an atmosphere in which visibility is reduced because of a cloud of some substance. wn

[3] #3 fog n. [daze, haze] confusion characterized by lack of clarity. wn

[4] #4 fog v. [obscure, befog, becloud, obnubilate, haze over, cloud, mist] make less visible or unclear; "The stars are obscured by the clouds"; "the big elm tree obscures our view of the valley". wn