1 - A single act of visiting.
2 - A meeting with a doctor at their surgery or the doctor's at one's home.
1 - To habitually go to (someone in distress, sickness etc.) to comfort them. (Now generally merged into later senses, below.)
2 - To go and meet (a person) as an act of friendliness or sociability.
3 - Of God: to appear to (someone) to comfort, bless, or chastise or punish them. (Now generally merged into later senses, below.)





