too

too /ˈtuː/ adverb
too
/ˈtuː/
adverb
Britannica Dictionary definition of TOO
1 
usually used at the end of a sentence or clause : in addition : also
— often used for emphasis
2 
always used before an adjective or adverb : more than what is wanted, needed, acceptable, possible, etc.
— see also too bad at 1bad, too much at 1much
3 
always used before an adjective or adverb : to a high degree or extent : very or extremely — used in negative statements
4 
chiefly US, informal : most certainly