US, informalmilitary activity in which soldiers, airplanes, etc., are sent to find out information about an enemy

• gondolas
• gone
• gone along
• gone at
• gone back on
• gone ballistic
• gone down
• gone down (with)
• gone (for)
• gone in
• gone in for
• gone in (on)
• gone like clockwork
• gone off
• gone off the deep end
• gone (on)
• gone one better
• gone out
• gone out (with)
• gone over
• gone public
• gone public (with)
• gone steady
• gone through
• gone (to)