(focus) Likewise.
Also; in addition.
There has been a cutback in federal subsidies. Too, rates have been increasing.
(degree) To an excessive degree; over; more than enough.
(degree) To a high degree, very.
She doesn't talk too much. I'm not too sure about this.
(affirmation) Used to contradict a negative assertion.
"You're not old enough yet." "I am, too!"