(Of an animal) that lives with, is fed and raised by humans, as opposed to living in the wild.
To make obedient, docile and tractable; to train to follow orders of the owner.  
To make less strong or intense; soften.
very docile; "tame obedience"; "meek as a mouse"- Langston Hughes
flat and uninspiring
very restrained or quiet; "a tame Christmas party"; "she was one of the tamest and most abject creatures imaginable with no will or power to act but as directed"
correct by punishment or discipline
brought from wildness into a domesticated state; "tame animals"; "fields of tame blueberries"
make fit for cultivation, domestic life, and service to humans; "The horse was domesticated a long time ago"; "The wolf was tamed and evolved into the house dog"
overcome the wildness of; make docile and tractable; "He tames lions for the circus"; "reclaim falcons"
adapt (a wild plant or unclaimed land) to the environment; "domesticate oats"; "tame the soil"
make less strong or intense; soften; "Tone down that aggressive letter"; "The author finally tamed some of his potentially offensive statements"
make fit for cultivation, domestic life, and service to humans
overcome the wildness of; make docile and tractable
adapt (a wild plant or unclaimed land) to the environment