To contact (someone) in order to raise or discuss a certain matter.
Used other than figuratively or idiomatically: see get on, to.
To progress to; to start working on.
To ask (somebody) to do something.
To ask for (something).
A message sent over a network to a server.
Act of requesting (with the adposition at in the presence of possessives, and on in their absence).
Condition of being sought after.
A formal message requesting something.